Rerun of a supernova blast expected 2037

Astronomers expect to see a rerun of a supernova blast, whose light traveled 10 billion years to reach us, in about the year 2037.

Moon, Saturn, Jupiter September 15 to 18

Watch for the moon, Saturn, Jupiter on September 15 to 18, 2021.

Impact on Jupiter surprises skywatchers

An impact on Jupiter has stargazers looking skyward to see if they can spot any lingering evidence of the September 13, 2021, event.

Missing impact debris mystery solved?

Where is the missing impact debris from the early solar system? A new study says it was probably vaporized into gas that subsequently escaped the solar system.

Mercury greatest elongation September 14, best for S. Hemisphere

Watch for Mercury from Southern Hemisphere locations in late August, through September, 2021. Meanwhile, from northerly latitudes, bring binoculars!

Dog-bone asteroid Kleopatra makes a fetching portrait

ESO released new images of Kleopatra, the dog-bone asteroid. The images helped astronomers uncover its size and composition, revealing that it's a rubble pile.

NASA drought research: Glimpsing the future

New NASA drought research is showing how the U.S. Southwest might change in the future, under different scenarios of adaptation and mitigation.

Moon, Antares and Venus on September 12

From around the world on September 12, 2021, watch for the moon and Antares. This star - a summer star for the Northern Hemisphere - is shifting westward.

Wildfire threatens a SETI telescope in California

Wildfire threatens a SETI telescope. The Allen Telescope Array in California was built specifically for SETI. Scientists and engineers evacuated.

A new coral reef atlas you can explore

A new coral reef atlas is the first global, high-resolution map of its kind. It presents details on the composition and structure of the ocean floor.