Spacetime - Blog Posts
oh yeah what I meant by this! watched Interstellar with my brothers last night. two of them are science nerds! so well one has seen it and one hadn't before
so afterward I sat at a table with the one that hadn't priorly seen it and asked scale of 1 to 10 how realistic he felt it was. he got immediately hung up on the mathematics of the time as portrayed on screen, we jabbered about that for a while
... and second brother comes in. "Okay what you NEED to know," he says, and he's apparently talked this over with the fandom several times over, and he just takes off in this conversation and here I am sitting between two brothers who are going off about the science of well everything practically
inwardly I'm kinda making this face :D because I miss these sorts of arguments (and also I get to be a part of it)
and bro
okay yeah I could go into the whole wormholes and black hole/white hole and time shift and that sort of thing, it was a good conversation, but I'll save that for another time
and there was the whole me bringing up The Martian as more realistic and then us picking it apart too (tbh it's very good tho) but again not the point of tonight's tale
the point being
loved ones are so precious
loved ones are so precious when they're engaging in the thing they love
love languages can be arguing over science technicalities in science fiction and cinema
I love these people so much and I love that I get to be theirs.
bringing back the interstellar fandom one cranky science nerd at a time
What are Gravitational Waves?
Today, the National Science Foundation (NSF) announced the detection of gravitational waves by the Laser Interferometer Gravitational-Wave Observatory (LIGO), a pair of ground-based observatories. But...what are gravitational waves? Let us explain:
Gravitational waves are disturbances in space-time, the very fabric of the universe, that travel at the speed of light. The waves are emitted by any mass that is changing speed or direction. The simplest example is a binary system, where a pair of stars or compact objects (like black holes) orbit their common center of mass.
We can think of gravitational effects as curvatures in space-time. Earth’s gravity is constant and produces a static curve in space-time. A gravitational wave is a curvature that moves through space-time much like a water wave moves across the surface of a lake. It is generated only when masses are speeding up, slowing down or changing direction.
Did you know Earth also gives off gravitational waves? Earth orbits the sun, which means its direction is always changing, so it does generate gravitational waves, although extremely weak and faint.
What do we learn from these waves?
Observing gravitational waves would be a huge step forward in our understanding of the evolution of the universe, and how large-scale structures, like galaxies and galaxy clusters, are formed.
Gravitational waves can travel across the universe without being impeded by intervening dust and gas. These waves could also provide information about massive objects, such as black holes, that do not themselves emit light and would be undetectable with traditional telescopes.
Just as we need both ground-based and space-based optical telescopes, we need both kinds of gravitational wave observatories to study different wavelengths. Each type complements the other.
Ground-based: For optical telescopes, Earth’s atmosphere prevents some wavelengths from reaching the ground and distorts the light that does.
Space-based: Telescopes in space have a clear, steady view. That said, telescopes on the ground can be much larger than anything ever launched into space, so they can capture more light from faint objects.
How does this relate to Einstein’s theory of relativity?
The direct detection of gravitational waves is the last major prediction of Einstein’s theory to be proven. Direct detection of these waves will allow scientists to test specific predictions of the theory under conditions that have not been observed to date, such as in very strong gravitational fields.
In everyday language, “theory” means something different than it does to scientists. For scientists, the word refers to a system of ideas that explains observations and experimental results through independent general principles. Isaac Newton's theory of gravity has limitations we can measure by, say, long-term observations of the motion of the planet Mercury. Einstein's relativity theory explains these and other measurements. We recognize that Newton's theory is incomplete when we make sufficiently sensitive measurements. This is likely also true for relativity, and gravitational waves may help us understand where it becomes incomplete.
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International Asteroid Day aims to raise public awareness about the asteroid impact hazard and to inform the public about the crisis communication actions to be taken at the global level in case of a credible near-Earth object threat. . . . . . . #asteroid #universe #space #spacetime #astronomy #astronomer #spacestation #spacetravel #sunrise #satellite https://www.instagram.com/p/CCDuhL2DN0Z/?igshid=5vxzze8zzajg
I was screwing around with the Doctor Who Red Nose Day special short "Space/Time" (see those first if you haven't) and this accidentally happened.
Doctor Who ©BBC.
Kepler-186f (also known by its Kepler object of interest designation KOI-571.05) is an exoplanet orbiting the red dwarf Kepler-186, about 582 light-years (178.5 parsecs, or nearly 5.298×1015 km) from the Earth.⠀ ⠀ It is the first planet with a radius similar to Earth's to be discovered in the habitable zone of another star. ⠀ ⠀ #kepler #kepler186f #exoplanet #universe #solarsystem#cosmos #nasa #spacex #astronomy #astrophysics #esa#cern #earth #planets #sun #star #spacetime#unlockingspacetime #spacetime https://www.instagram.com/p/CDOjQfQnG9o/?igshid=9juzm9m07km6
Which one do you want to watch? 😍 • Follow @_space___lover_ for More Amazing Stuff About Space & Science 🚀 • Follow @_space___lover_ 🛰 Follow @_space___lover_ 🛰 • • Share with your friends ! 📲 • Hashtags 📊 #curiosityofspace #nebula #space #cosmology #scifi #spacex #curiosity #spacememes #astronomer #astronomy #wormholes #universe #astronomie #astronomyphotography #astrophotography #spacetime #astronomical #astronomyphotos #spacefacts #spacetoday #cosmos #cosmology #interstellar #deepspace #spaceexploration #deepsky https://www.instagram.com/p/CCakePgnSFW/?igshid=1gmceqp2xku86
Star trails 🌠 Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #galaxy #science #astronaut #planets #astrophysics #cosmology https://www.instagram.com/p/CDfo7xMjZEW/?igshid=1ux6s59m74unr
The famous eagle aurora 💯🔥 Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #galaxy #science #astronaut #planets #astrophysics #cosmology #nebula #aurora https://www.instagram.com/p/CDeUQFpDef6/?igshid=850hd4voqe7m
Coolest and creative animation of space travel 💯 Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #galaxy #science #astronaut #planets #astrophysics #cosmology #nebula #solarsystem https://www.instagram.com/p/CDdLaJCj0bN/?igshid=1roj7yjw1j2og
Swipe left ➡️ 2 planets, one star and a comet all lying in the same plane 💯🔥. Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #galaxy #science #astronaut #planets #astrophysics #cosmology #nebula #solarsystem https://www.instagram.com/p/CDb1WISDOpl/?igshid=1m297vhjh67zc
VTOL - Vertical Take off and Landing of an Aircraft. Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #vtol #vtolaircraft #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #galaxy #science #astronaut #planets #astrophysics #cosmology https://www.instagram.com/p/CDaTp7sDd6D/?igshid=1ordj32jbdabu
Once in a blue moon on the arc of a tree. Follow us for more interesting updates on @the_astrophysics_forum . Does an alignment like this occur only once in a blue moon? No, although it was during a blue moon that this single-shot image was taken. During a full moon that happened to be the second of the month -- the situation that defines a blue moon -- the photographer created the juxtaposition in late January by quickly moving around to find just the right spot to get the background Moon superposed behind the arc of a foreground tree. Unfortunately, in this case, there seemed no other way than getting bogged down in mud and resting the camera on a barbed-wire fence. Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #galaxy #science #astronaut #planets #astrophysics #cosmology #nebula #solarsystem https://www.instagram.com/p/CDZKtTkD57R/?igshid=wpnuzj6643qe
Sand dunes on gale crater of mars. Follow us for more interesting updates @the_astrophysics_forum . A new type of dune, called “wind-drag ripples,” found last year by the Curiosity rover in Gale Crater. The dune is a part of the Bagnold Dune Field, on the the northwestern flank of Mount Sharp. The images were taken in early morning, with the camera looking in the direction of the sun. This mosaic combining the images has been processed to brighten it and make the ripples more visible. The sand is very dark, both from the morning shadows and from the intrinsic darkness of the basaltic minerals that dominate its composition. The base of Mount Sharp can be seen beyond the dunes. Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #galaxy #science #astronaut #planets #astrophysics #cosmology #nebula #solarsystem (at Mars) https://www.instagram.com/p/CDYLFTFDhfL/?igshid=jlnn7ii4i22f
Escatic timelapse of our milkyway galaxy containing plethora of stars in the sky from the waters. Do follow us for interesting updates @the_astrophysics_forum . Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #galaxy #science #astronaut #planets #astrophysics #cosmology #nebula #solarsystem https://www.instagram.com/p/CDWeDLyDE89/?igshid=1uh54ldpzzih7
Psyche it is ! Follow us to explore more with us @the_astrophysics_forum .⬇️ The Psyche mission is a journey to a unique metal asteroid orbiting the Sun between Mars and Jupiter. What makes the asteroid Psyche unique is that it appears to be the exposed nickel-iron core of an early planet, one of the building blocks of our solar system. Deep within rocky, terrestrial planets - including Earth - scientists infer the presence of metallic cores, but these lie unreachably far below the planets' rocky mantles and crusts. Because we cannot see or measure Earth's core directly, Psyche offers a unique window into the violent history of collisions and accretion that created terrestrial planets. The mission is led by Arizona State University. NASA's Jet Propulsion Laboratory is responsible for mission management, operations and navigation. The spacecraft's solar-electric propulsion chassis will be built by Maxar (formerly SSL) with a payload that includes an imager, magnetometer, and a gamma-ray spectrometer. Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #psyche #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #jupiter #science #astronaut #planets #astrophysics #cosmology #solarsystem https://www.instagram.com/p/CDTn8J0DvdG/?igshid=jg42dzpqix7c
Watch this interesting simulation about the mysteries of the universe 😍💯. Space continues raising more and questions to the humanity with many of them yet remaining unanswered. The Universe has phenomena that people might be unable to explain. ⠀ 👽 Is there life on Mars? 💫 Is it possible to overcome the speed of light? 🌌 Where is the edge of the Universe and how fast one can reach it? ☄ What is inside a black hole? Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #galaxy #science #astronaut #planets #astrophysics #cosmology #nebula #solarsystem https://www.instagram.com/p/CDS9PpfjHAn/?igshid=12ir2xn53k9gk
SWIPE FOR MORE ➡️ NASA’s Mars 2020 Perseverance rover lifted off successfully today, July 30, at 7:50 a.m. EDT (1150 GMT) aboard a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida. follow us to explore more at @the_astrophysics_forum . The rover will take about seven months to travel to the Red Planet and, on Feb. 18, 2021, will land in Mars' Jezero Crater to search for signs of life, explore the planet's geology and much more. Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #perserverance #mars2020 #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #galaxy #science #astronaut #planets #astrophysics #cosmology (at Cape Canaveral NASA) https://www.instagram.com/p/CDRKB0ND3R0/?igshid=suds0lgn488y
Radhika Lakhani and Vaidehi Vekariya, both studying in 10th grade, were working on a school project when they discovered the asteroid, which they named HLV2514. Follow us to explore more with us @the_astrophysics_forum . The girls, from the city of Surat in the western Indian state of Gujarat, were participating in a Space India and NASA project, which allows students to analyze images taken by a telescope positioned at the University of Hawaii. Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #galaxy #science #astronaut #planets #astrophysics #cosmology #nebula #solarsystem https://www.instagram.com/p/CDP4Y3Fjy8e/?igshid=1vvuug3d8zw9e
Beautiful 24 hour timelapse of the Fall Equinox. Wait for it till the end 💯. Follow us to explore more with us @the_astrophysics_forum . Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #galaxy #science #astronaut #planets #astrophysics #cosmology #nebula #solarsystem https://www.instagram.com/p/CDOsgeKDMgD/?igshid=5n0xpt0nldi2
The Dragon V2, designed to be an reusable spacecraft able to transport astronauts into space and back to Earth. A SpaceX Falcon 9 rocket carrying the company's Crew Dragon spacecraft is launched from Launch Complex 39A on NASA's SpaceX Demo-2 mission to the International Space Station with NASA astronauts Robert Behnken and Douglas Hurley onboard, Saturday, May 30, 2020, at NASA's Kennedy Space Center in Florida. Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #falcon9 #launchamerica #crewdragon #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #galaxy #science #astronaut #planets #astrophysics https://www.instagram.com/p/CDNtHF3j_yl/?igshid=1bmhtlw9cyxd5
Glorious and gigantic Jupiter from juno probe. Follow us to explore more with us @the_astrophysics_forum . The Juno mission has the potential to be very, very significant because it won’t just tell us more about Jupiter (which is worthy enough on its own), it will tell us more about the formation of the solar system. As the largest item in the solar system (other than the Sun, of course), Jupiter is the place to look to gain understanding of the primordial solar system. Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #jupiter #juno #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earth #galaxy #science #astronaut #planets #astrophysics #cosmology #nebula #solarsystem https://www.instagram.com/p/CDLurcLjw2p/?igshid=x7fzj9nhojbe
Why would clouds form a hexagon on Saturn? Follow us to explore more with us @the_astrophysics_forum. Nobody is sure. Originally discovered during the Voyager flybys of Saturn in the 1980s, nobody has ever seen anything like it anywhere else in the Solar System. Acquiring its first sunlit views of far northern Saturn in late 2012, the Cassini spacecraft's wide-angle camera recorded this stunning, false-color image of the ringed planet's north pole. The composite of near-infrared image data results in red hues for low clouds and green for high ones, giving the Saturnian cloudscape a vivid appearance. This and similar images show the stability of the hexagon even 20+ years after Voyager. Movies of Saturn's North Pole show the cloud structure maintaining its hexagonal structure while rotating. Unlike individual clouds appearing like a hexagon on Earth, the Saturn cloud pattern appears to have six well defined sides of nearly equal length. Four Earths could fit inside the hexagon. Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #saturn #saturnhexagon #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #science #astronaut #planets #astrophysics #cosmology #nebula #solarsystem https://www.instagram.com/p/CDK5eXgjVPs/?igshid=ponilu3snxkk
Today, 27th July is celebrated as APJ Abdul Kalam's Memorial Day. Your contribution towards development of the nation cannot be forgotten ever. We'll miss you sir❤️. An inspiration to billions of people around the world. "If you fail, never give up because FAIL means "First Attempt In Learning" ~ APJ. Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #apjabdulkalam #apj #apjabdulkalamquotes #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #galaxy #science #astronaut #planets #astrophysics https://www.instagram.com/p/CDI4ZG7DiAa/?igshid=1s0i35oxxyzzc
We would've seen many more space exploration and probably ones like in interstellar and Martian movies as well xD. Follow us to explore more @the_astrophysics_forum. Tighten your seatbelts and get ready to explore endless universe 🚀 Make sure you follow us @the_astrophysics_forum To stay on board 👨🚀 . . . . . . . #spacex #elonmusk #space #nasa #isro #universetoday #universe #hubbletelescope #hubble #milkywaychasers #milkyway #spacetime #spaceexploration #spacetravel #deepspace #astronomy #neildegrassetyson #astronomer #blackhole #earthday #earth #mars #galaxy #science #astronaut #planets #astrophysics #cosmology #nebula #solarsystem https://www.instagram.com/p/CDIX8IkjlVw/?igshid=rcdivh9lqkqb