EarthSky friend John Ashley shared his video of Comet R3 PanSTARRS rising before the sun in…
Category: Earth Sky
The night sky in the time of the dinosaurs
What did the night sky look like in the time of the dinosaurs? Image via Stephen…
Universe’s expansion rate: ‘Something doesn’t add up’
An international collaboration of astronomers has produced one of the most precise measurements yet of the…
Why do Jupiter’s large moons outnumber Saturn’s?
View larger. | This artist’s concept shows Jupiter with its powerful magnetic field (left) and Saturn…
Supermassive black holes could merge in 100 years
This artistic rendering shows the center of the distant galaxy Markarian 501 and its 2 powerful…
What is the Earth’s most distant spacecraft?
View larger. | On February 14, 1990, the Voyager 1 spacecraft – most distant spacecraft from…
Walking robots on Mars could speed up life search
View larger. | Ready for this? It’s a prototype for walking robots on Mars at the…
There’s less ice in moon’s shadows than 1st thought
View larger. | Scientists once spoke of possible rich deposits of water ice in the deep,…
11,000 new asteroids! Astronomers call it ‘tip of iceberg’
This is a model of the inner solar system. The outermost orbit shown is that of…
5 insights on interstellar comet 3I/ATLAS from ESA’s Juice mission
Observations of Comet 3I/ATLAS by the JANUS camera on ESA’s Juice mission. Juice caught the comet…