Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Swift’s 1000th gamma-ray burst
This flash of gamma rays came at 6:41 p.m. EDT on October 27. Later, astronomers learned it had traveled toward Earth for 12 billion years.
November 9, 2015
SETI seeks signal from mystery star
Star KIC 8462852 made headlines last month for having a possible alien megastructure. SETI team now seeking deliberate radio signal. None found yet.
November 7, 2015
Solar wind likely stripped Martian atmosphere
Mars was once warm and wet, say scientists. But most of the water from its atmosphere was likely stripped away by solar winds.
November 6, 2015
Family portrait of Mars dust devils
A telescopic camera on a Mars orbiter caught these 8 dust devils in a single afternoon.
November 6, 2015
Tune in to second spacewalk live November 6
If you missed last week’s spacewalk, here’s another chance. The same two ISS astronauts are performing their second spacewalk today (November 6, 2015), starting at 7:10 a.m. EST (1210 UTC).
November 6, 2015
Whoa! That’s a big galaxy cluster
The cluster's mass is a quadrillion times that of our sun - making it the most massive known cluster that far back in space and time.
November 4, 2015
Peeling back layers of a warm Neptune
Astronomers have discovered an immense hydrogen cloud streaming off a Neptune-sized exoplanet. The planet's atmosphere is evaporating, say scientists.
November 3, 2015
Scientists to monitor skies for UFOs
UFODATA wants to make UFO studies a more rigorous science and deploy a global network of automated surveillance stations to watch for UFOs full-time.
November 2, 2015
Update: 2015 TB145 likely a dead comet
Last week heralded as largest known asteroid to pass Earth until 2027. Swept within 1.3 times the moon's distance on October 31. Now thought to be a comet!
October 31, 2015
Black hole flares from puzzling coronas?
A black hole may flare when its corona - a mysterious source of highly energetic particles - launches away from the hole at close to 20 percent of light speed.
October 30, 2015
