Sunspot AR3186 erupted with an X1-class solar flare. NASA's Solar Dynamics Observatory captured the fireworks in multiple ...

Sunspot AR3165 has erupted with several m-class solar flares in a span of a few hours. NASA Solar Dynamics Observatory ...

Donald Trump is throwing a fit as a series of polls spell trouble for him and the GOP. The president, who likes to tell people he has the “best numbers,” appeared to acknowledge that recent polls have ...

The telescope will catalogue billions of new objects and produce a new map of the entire night sky every three days with the largest digital camera ever made. High atop Chile’s 2,700-meter Cerro ...

International Space Station (ISS) crew work pretty hard, but when they do get time off, they often head to the "Cupola," according to Andrey Borisenko. The Russian cosmonaut shows us what it's like to ...

Since its founding in 1894, Lowell Observatory in Flagstaff has been a beacon of astronomical discovery, its scientists famously identifying Pluto and revealing the expanding universe. Now, Lowell ...

Millions of Americans will step outside Monday afternoon to see the last solar eclipse expected to be visible from the lower 48 states until 2044, but a handful of homeowners will have a leg up as ...

NOAA, the nation’s leading climate science agency, may lose dozens of offices, including one that is key to the Mauna Loa Observatory in Hawaii. By Austyn Gaffney On the flanks of the largest active ...