The two exoplanets, or planets outside of our solar system, orbit a star called TOI-1453, which is slightly cooler and ...

Sea ice plays many important roles for the global climate: Its white surface can reflect energy back into space, helping the ...

Martian dust contains hazardous substances like silica, perchlorates, nanophase iron oxides and toxic metals, which can cause ...

Surveyor, a $1.4-billion infrared telescope designed to detect asteroids and comets that could pose a threat to Earth.

Martian lake beds and deltas reveal the Red Planet’s watery past. But many puzzles remain, scientist Bruce Jakosky says.

The losses in soil moisture already pose issues for farming, irrigation systems and critical water resources for humans. But ...