View larger. | Meet the Arsia Mons Elongated Cloud. It forms yearly and extends from the…
Category: Earth Sky
Another satellite breakup raises concerns about space junk
On October 5, 2026, another satellite breakup occurred in low-Earth orbit. LeoLabs — a company that…
Did formaldehyde on ancient Mars help kickstart life?
View larger. | Artist’s concept of the ancient lake in Gale crater. A new study from…
Black holes could have planets, new simulations suggest
This image, which the European Southern Observatory (ESO) released on March 27, 2024, shows the supermassive…
How a helium leak in an exoplanet atmosphere hints at life
Artist’s impression of the newly discovered rocky exoplanet, LHS 1140b. This exoplanet atmosphere is leaking helium.…
Solar system’s most bizarre moons! Take the tour
When humans began exploring our solar system — the moons, planets, asteroids and comets orbiting our…
Could an Earthlike planet with 2 stars be nearby?
This artist’s concept shows a planet orbiting 2 stars, visible at upper left and upper right.…
Is this an alien radio signal from a super-Earth exoplanet?
View larger. | Artist’s concept of the exoplanet called K2-155 d. China’s FAST radio telescope detected…
Life on Enceladus? Chances get big boost in 2 new studies
NASA’s Cassini spacecraft captured this view of Enceladus — one of Saturn’s moons — and its…
Water systems on early Mars were complex and hot
View larger/ full image. | Partial view of the Margin Unit in Jezero crater on Mars.…