Surprise: There was a universe before the Big Bang | Ethan Siegel
AdultsAstronomyPhilosophyPhysicsScience "Asking the question of, where did the entire universe come from, is no longer a question for poets and theologians and philosophers.
Are We Alone in the Universe? We’re Close to Finding Out | Lisa Kaltenegger | TED
AdultsAstronomyPhilosophyScienceSpace Astrophysicist Lisa Kaltenegger explores the thrilling possibility of discovering life beyond Earth, highlighting how cutting-edge technology like the James Webb Space Telescope lets us analyze distant planets for signs of life in unprecedented detail.
An Ancient Roman Shipwreck May Explain the Universe
AdultsHistoryScienceSpaceAstronomy Why would astrophysicists care about a two millennia old Roman shipwreck between the islands of Sardinia and Mal Di Ventre?
The Solar System is Beige
AdultsEducationScienceSpaceAstronomy Whether you grew up with a poster of the solar system on your bedroom wall or not, you've probably got a specific idea of what the planets look like. From brilliantly blue Neptune to the "red planet" Mars. But if you managed to actually visit these worlds, you'd find reality... a little beige.
MinuteEarth Explains: Solar Eclipses
AdultsEducationScienceSpaceAstronomy Over the last year, we at MinuteEarth and MinutePhysics have had the privilege of working with NASA's Heliophysics Education Activation Team make a series of videos about the awesomeness of solar eclipses. Here they are, all seven of them!
Eclipses Used To Be Terrifying
AdultsLifeScienceAstronomy Because eclipses are powerful and frightening events, ancient cultures went to great lengths to understand eclipses, leading to remarkably accurate predictions and helping invent the science of astronomy.
How One Line in the Oldest Math Text Hinted at Hidden Universes
AdultsEducationHistoryHumanScienceAstronomy A huge thank you to Prof. Geraint Lewis and Dr. Ashmeet Singh for helping us understand the applications of Non-Euclidean geometry in astronomy/cosmology.
Why Are Saturn’s Rings Younger Than Saturn?
AdultsEducationScienceSpaceAstronomy Saturn's rings are younger than Saturn, and the most spectacular sight in the Solar System is also disappearing. How do we know? By running our finger through some cosmic dust.
Why Does NASA Observe The Sun In Different Colours?
YouthScienceSpaceAstronomy The Solar Dynamics Observatory, or SDO, sees the Sun in more than 10 distinct wavelengths of light, showing solar material at different temperatures.
Why Is Our Moon Two-Faced?
AdultsLifeScienceSpaceAstronomy The near side of the Moon has a thin crust and is covered in maria. The far side has a thick crust and almost no maria.
How To Find A Galaxy
YouthScienceSpaceAstronomy Knowing the addresses of a thousand galaxies yielded a remarkable picture of our universe.
The Largest Known Star
YouthSpaceScienceAstronomy What is the largest star in the Universe? And why is it that large? And what ARE stars anyway?
What's The Difference Between Asteroids, Comets, And Meteors?
YouthSpaceScienceAstronomy Asteroids, comets, and meteors: what's the difference?