Artist’s concept of dwarf planet Eris, with its moon Dysnomia. They reside in the Kuiper Belt…
Category: Earth Sky
Castor is 6 stars in one
Twin stars and a star cluster. From a Northern Hemisphere location, face generally northward to find…
Euclid space telescope begins dark universe survey
Euclid’s mission is to scan 1/3 of the night sky in the visible and near-infrared and…
Are Chariklo’s rings shaped by a tiny unseen moon?
View larger. | Artist’s concept of the centaur-type asteroid Chariklo, with its 2 thin rings. A…
The brighter twin star of Gemini
Draw an imaginary line from 2 bright stars in the easy-to-see constellation Orion the Hunter to…
Big, dead satellite will crash back to Earth next week
Artist’s concept of ESA’s ERS-2. The dead satellite finished its mission back in 2011 and has…
We heart the Earth and sky! PHOTOS
Happy Valentine’s Day! We’re sharing the love by celebrating some of the many heart-shaped objects you…
What is orbital resonance? A dance between heavenly bodies
Astronomers use the term orbital resonance to describe the way planets can gravitationally affect each other…
NASA Jet Propulsion Laboratory to cut 8% of workforce this week
The Space Flight Operations Center at Jet Propulsion Laboratory has been operational and staffed every day…
Isolated dwarf galaxy puzzles astronomers
View larger. | Meet dwarf galaxy PEARLSDG. It’s 98 million light-years away. But, thanks to NASA’s…