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

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 ...

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 ...

Stars and planets are inextricably linked. They form together and stars shape the fate of planets. Stars create the dusty ...

Jupiter is reaching its closest approach to Earth in 2026, blazing brighter than almost anything in the night sky and visible ...

A lucky alignment of space- and ground-based telescopes has enabled researchers to nail down the mass of a rogue planet for the first time. Unlike worlds in our Solar System, rogue planets do not ...

From signs of life on Mars to an interstellar visitor and weakening dark energy, 2025 reshaped space science, raising the ...

The upcoming year will offer a blood-red moon, spectacular meteor showers and the first glimpse of the sun’s corona since ...