We often take that big, bright ball of light in our sky for granted. But we all know how vital the sun is for life on Earth. So, what would happen if we had two of them? Would doubling up on suns be a good thing, or bad? Our hypothetical lives in a new-look solar system would definitely be VERY different…
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Overview: Eleven dimensions, parallel universes, and a world made out of strings. It’s not science fiction, it’s string theory.
Beginning with a brief consideration of classical physics, which concentrates on the major conflicts in physics, Greene establishes a historical context for string theory as a necessary means of integrating the probabilistic world of the standard model of particle physics and the deterministic Newtonian physics of the macroscopic world. Greene discusses the essential problem facing modern physics: unification of Albert Einstein’s theory of General Relativity and Quantum Mechanics. Greene suggests that string theory is the solution to these two conflicting approaches. Greene frequently uses analogies and thought experiments to provide a means for the layman to come to terms with the theory which has the potential to create a unified theory of physics.
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The speed of light is often cited as the fastest anything can travel in our universe. While this might be true, the speed of light is the EFFECT and not the CAUSE of this phenomenon. So what’s the cause? On this week’s episode of Space Time, Matt helps explain what the speed of light REALLY is and why it’s the cosmic speed limit of our universe!
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In National Geographic Channel’s “Mars: Making the New Earth”, award winning writer/producer Mark Davis and legendary Mars animator Dan Maas collaborate with McKay on the first in depth visualization of what it would take to turn a cold, dead planet into a living world.
When astronomers noticed the erratic flickering of KIC 8462852 in 2015, the little-known star became our new planetary obsession – could an alien megastructure be surrounding Tabby’s Star?
NASA’s Kepler Mission proved that whatever was making the planet star dim uncontrollably could not have been a planet as we know it. Astronomers have increasingly accepted the possibility of a Dyson sphere, but the truth about the star remains a mystery.
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I love clips about space and universe. My favorite stuff to learn more about.
Listen to Martian wind blow across NASA’s InSight lander. The spacecraft’s seismometer and air pressure sensor picked up vibrations from 10-15 mph (16-24 kph) winds as they blew across Mars’ Elysium Planitia on Dec. 1, 2018.
The seismometer readings are in the range of human hearing, but are nearly all bass and difficult to hear on laptop speakers and mobile devices. We provide the original audio and a version pitched up by two octaves to make them audible on mobile devices. Playback is suggested on a sound system with a subwoofer or through headphones. Readings from the air pressure sensor have been sped up by a factor of 100 times to make them audible. For full-length uncompressed .wav files, visit NASA.gov/sounds
Since the very first module Zarya launched from Baikonur Cosmodrome on 20 November 1998, the International Space Station has delivered a whole new perspective on this planet we call home. Join us as we celebrate 20 years of international collaboration and research for the benefit of Earth with ESA astronaut Alexander Gerst’s longest timelapse yet.
In just under 15 minutes, this clip takes you from Tunisia across Beijing and through Australia in two trips around the world. You can follow the Station’s location using the map at the top right-hand-side of the screen alongside annotations on the photos themselves.
This timelapse comprises approximately 21 375 images of Earth all captured by Alexander from the International Space Station and shown 12.5 times faster than actual speed.
Music is Orbital Horizons, an original composition by Los Angeles-based musician Matt Piper.
Participate in further Space Station celebrations via social media using hashtag #SpaceStation20th
Hank tells the story of the mysterious star known as “Methuseleh,” and why scientists think that it is the oldest known star in the universe.
