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EarthSky friend John Ashley shared his video of Comet R3 PanSTARRS rising before the sun in Arizona on April 12, 2026. John wrote: “Comet PanSTARRS rises beyond the Smithsonian’s Whipple

What did the night sky look like in the time of the dinosaurs? Image via Stephen Leonardi/ Pexels. You deserve a daily dose of good news. For the latest in

An international collaboration of astronomers has produced one of the most precise measurements yet of the local universe’s expansion rate, out to about 1 billion light-years. And the new measurements

Orbit of asteroid Apophis (pink) in contrast to the orbit of Earth (blue), from the years 2028 to 2030. The yellow dot represents the sun. Apophis takes 323.6 days to

View larger. | This artist’s concept shows Jupiter with its powerful magnetic field (left) and Saturn with its weaker magnetic field in the early years of our solar system. Jupiter’s

This artistic rendering shows the center of the distant galaxy Markarian 501 and its 2 powerful jets. A supermassive black hole at this galaxy’s center is thought to partly bend

View larger. | On February 14, 1990, the Voyager 1 spacecraft – most distant spacecraft from Earth – pointed its cameras back toward the sun and captured a series of

View larger. | Scientists once spoke of possible rich deposits of water ice in the deep, permanently shadowed craters at the moon’s poles. But a new study suggests less ice

View larger. | Ready for this? It’s a prototype for walking robots on Mars at the Marslabor facility at the University of Basel in Switzerland. Its builders say a robot

This is a model of the inner solar system. The outermost orbit shown is that of Jupiter. The dark blue ring represents known asteroids in the asteroid belt. The light