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Did an interstellar traveler hit Earth in 2014?
'Oumuamua - 1st known object to sweep past us from beyond our solar system - caused a stir when astronomers spotted it in 2017. Now a new study suggests another interstellar object might have hit the Earth in 2014.
April 25, 2019
Meteor over Colorado
Who saw Lyrid meteors this week? Chuck Mason captured this image on April 20. He said, "Lucky enough to have caught a Lyrid Meteor over the Dallas Divide, Ridgway, Colorado."
April 25, 2019
Universe’s 1st type of molecule found at last
Scientists have detected the 1st type of molecule that ever formed in the universe - a combination of helium and hydrogen called helium hydride - in a planetary nebula near the constellation Cygnus.
April 24, 2019
Pink sky over Yosemite
Yosemite Valley in California is home to most of the park's famous waterfalls. This photographer caught the valley at dusk.
April 24, 2019
Scientists find new surprises about Titan’s lakes
Cassini data now reveal that some of Titan's lakes are surprisingly deep.
April 23, 2019
Human history in your face
When you look in a mirror, the face you see is the result of millions of years of human evolution. Here's an interview with an expert discussing how and why our modern human faces evolved to look as they do today.
April 23, 2019
Rain over Asia foreshadows intense California heat
When heavy rain falls over Southeast Asia and the eastern Pacific Ocean, temperatures in California's Central Valley will reach 100 degrees F (38 C) in 4 to 16 days, says a new study.
April 23, 2019
Moon and Saturn to meet in morning sky
Before dawn on April 24, 25 and 26, 2019, watch for the moon to move past the planet Saturn on the sky's dome. The bright "star" nearby will be Jupiter.
April 23, 2019
One comet, 70 thousand images
Scientists released the OSIRIS Image Viewer to make the amazing images of comet 67P - acquired by the Rosetta spacecraft - easily accessible on the internet.
April 21, 2019
Closest rocky exoplanets could support life
Intense UV radiation from red dwarf stars was thought to make potentially habitable exoplanets unable to support life. But a new study of the 4 nearest rocky worlds suggests otherwise.
April 21, 2019
