In late 2025 a mysterious comet flew between the orbits of Earth and Mars and reached a speed of more than 150,000 miles per ...

The curious minds at What If investigate the cosmic chaos if Venus and Mars suddenly swapped orbits, revealing the dramatic effects on climate, gravity, and planetary ecosystems.

Are either of the moons of Mars large enough to eclipse the Sun as seen from the surface of Mars? Paul MancusoMilpitas, California Although both moons orbit Mars much closer than our own Moon orbits ...

As Mars’ atmosphere continues to change, NASA activated a new instrument on Feb.25 to study how the Sun influences the planet and what drives space weather near Earth. NASA launched ESCAPADE, which ...

Six planets are set to align on Saturday, creating a planetary parade that will be visible to sky-gazers across the globe.

We’re going back to the moon. Well, at least that’s the hope.

"We don’t know where they are,” said NASA’s planetary defense officer Kelly Fast at the AAAS conference in Arizona this week.

Min Read An artist's concept shows the two ESCAPADE spacecraft at Mars. The ESCAPADE mission is the first to coordinate two ...

Scientists identify exoplanet candidate HD 137010 b, a possible Earth-size world orbiting a Sun-like star 146 light-years away ...

It was likely debris from Kosmos 482 — a Soviet spacecraft launched in 1972 as part of a mission to Venus. The launch failed. The probe never made it to its ...