Over decades of observations across a broad range of wavelengths, M31 has unlocked our understanding of the vastness of the ...

Find out what the latest and greatest books, telescopes, accessories, and other products in astronomy are this month.

Venus lingers after sunset, Saturn and Neptune reach opposition, and Mercury makes its best morning appearance in the ...

Waves that ripple through the solar wind may be the key to solving a decadeslong mystery, according to an analysis of ...

Mercury reaches greatest western elongation, the zodiacal light shines, and the Moon passes Spica in the sky this week.

The Event Horizon Telescope (EHT) was designed to capture images of some of the most gargantuan structures in the universe — ...

The private Polaris mission aims to go farther from Earth than we've been in decades and accomplish the farthest ever EVA ...

When NASA announced Aug. 24 that Boeing Starliner astronauts Barry “Butch” Wilmore and Suni Williams will remain in space ...

A new solution to the Fermi paradox argues that intelligent civilizations are common but learn to limit themselves.

The only realistic option — and the one NASA has ultimately chosen — is to deorbit the station and let it come down through ...

Scientists first detected Ganymede’s aurorae from oxygen emissions approximately 20 years ago. The oxygen molecules are ...

The measurements are the first of their kind reported from the Moon’s polar highlands and broaden our view of the Moon’s ...