After years of planning, UofA's latest satellite is ready to blast off and study planets outside of our solar system.

Pandora, a University of Arizona satellite, is locked and loaded for launch into space, which is just hours away.

The James Webb Space Telescope (JWST) is a large space telescope which collects light at infrared wavelengths. It has been ...

The solar system’s largest planet shines bright as the Moon wanes and Saturn’s moons dance in the sky this week.

Shining in the constellation Gemini near the bright stars Pollux and Castor, Jupiter's opposition is the best time to see the ...

This Saturday, Jupiter will shine at its biggest and brightest of the year as Earth passes between the largest planet in our ...

The star system V1298 Tau reveals that many planets begin as large, low-density worlds that slowly shrink and shed their ...

Leonardo Testi and team investigate the initial conditions for planet formation in this special astronomy focus ...

On Saturday (Jan. 10), for example, we will see three satellites on one side of Jupiter (going outward from the planet: Ganymede, Io and Europa ), while the fourth ( Callisto) remains all by itself on ...

Key takeawaysPlanets larger than Earth but smaller than Neptune are the most common kind in the galaxy, but because our solar ...

Most planetary systems contain worlds larger than Earth but smaller than Neptune, and the low-density planets around one ...

One of the biggest recent surprises in astronomy is the discovery that most stars like the Sun harbor a planet between the ...