What If Mars Had Never Lost Its Atmosphere? Could It Be a Second Earth Today?
What if the Red Planet had never become the thin-aired desert we know today? Imagine Mars with cl…
Astronomers Just Confirmed the Youngest Planet Ever Found — It’s Less Than 1 Million Years Old
A planet has been caught so early in its life that the system around it is still a construction s…
What If the Universe Has No Edge — Where Would You End Up If You Kept Going?
Imagine leaving Earth, crossing the Milky Way, passing galaxy after galaxy, and somehow continuin…
What If Jupiter Suddenly Disappeared? Would Earth Be in Danger?
Imagine looking up one night and learning that Jupiter—the largest planet in the Solar System—has …
What If Earth Fell Into a Black Hole?
If Earth fell into a black hole, the planet would not simply disappear in one instant. Long bef…
What If Earth Were Kicked Out of the Solar System?
If Earth were somehow ejected from the Solar System, it would not explode, stop moving, or in…
What If Earth Had Rings Like Saturn?
If Earth had rings like Saturn, the most obvious change would be impossible to ignore: enormou…
NASA and IBM Built an AI to Read the Moon — Here’s What It Can Actually Do
NASA and IBM have released an open-source artificial intelligence model designed specifically to …
NASA’s Chandra Finds a New Class of Mysterious Hypersoft X-Ray Sources
Astronomers have identified a previously overlooked class of extraordinarily soft X-ray sources i…
Could We Ever Build Something That Completely Surrounds the Sun?
Yes, in principle, a sufficiently advanced civilization could build structures that collectively s…
OlderNewest