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Goodbye Kepler, hello TESS: Passing the baton in exoplanet search
When NASA first started planning the Kepler mission, no one knew if the universe held any planets outside our solar system. Thousands of exoplanets later, the search enters a new phase.
April 11, 2018
Hubble finds an Einstein ring
The arcs you see at the center of this Hubble Space Telescope image are created by the light of distant galaxies, distorted to form what's called an "Einstein ring."
April 11, 2018
Jupiter cloud patterns
See intricate cloud patterns in the northern hemisphere of Jupiter in this new view taken by NASA’s Juno spacecraft.
April 11, 2018
Aurora dolphin
Seeing animal shapes in clouds - or the northern lights - is what's called pareidolia.
April 10, 2018
Giant sun tornadoes aren’t spinning
Two-dimensional images of these solar prominences make them look as if they're spinning, and astronomers have long assumed they were. But new research says no.
April 9, 2018
Cosmic cold front older than solar system
Astronomers were surprised to discover an enormous “cold front” millions of light years in extent and older than the solar system.
April 9, 2018
How the moon reveals the sun’s mass
How do astronomers determine masses for distant space objects? Here's one example - using the moon's orbit as a baseline to find the mass of our sun - from EarthSky's Bruce McClure.
April 9, 2018
Little cloud making whoopee
To make whoopee can mean "to engage in uproarious merrymaking." Linda Holtby said she caught this shot from 38,900 feet (11,860 meters) up.
April 9, 2018
Look up: It’s a satellite!
"I use the Heavens Above astronomy site or the Starry Night app to check on satellites ... they are fun to spot."
April 8, 2018
3 worlds in a line
The waning moon is in the predawn sky, busily passing planets. EarthSky community photos of the moon, Mars and Saturn, here.
April 8, 2018
