Coronal holes on the Sun and space junk can be "long-lived" when sunspot activity drops to the low point of the 11-year solar cycle.
See our amazing collection of stories and features about the increasingly important topic of space weather (aka solar storms).
NASA is hoping to execute a nighttime rocket launch that's designed to create artificial glowing clouds. These could be visible to millions of people along the U.S. East Coast tonight (June 18).
NASA's upcoming sun-studying mission, which will come much closer to Earth's star than any spacecraft in history, has been renamed the Parker Solar Probe, agency officials announced today (May 31).
Mars is dry as a bone today, but the Red Planet once had raindrops bigger than the ones we're used to here on Earth, a new study suggests.
Solar astronomers have uncovered the magnetic secrets behind one of the sun's most mysterious eruptions: a coronal mass ejection that seems to come from nowhere.
Giant eruptions of material and smaller jets from the sun's surface are closer cousins than anyone thought.
Meet "Steve," a strange, new aurora feature discovered by citizen scientists and verified by the European Space Agency's (ESA) Swarm satellites.
Jupiter is famous for its Great Red Spot, a storm twice the diameter of Earth that rages on the gas giant's surface. Now, researchers have found that it has a second great spot, almost as large.
Bright auroras light up Uranus' atmosphere in two newly released photos, which combine observations by NASA's Hubble Space Telescope and the agency's Voyager 2 probe.
Earth and the sun are very different, but their atmospheres share something in common: A type of wave that undulates through Earth's skies may have an analogue in the body of the sun.
On March 23, the first charter flight to see the aurora australis — the southern lights — took flight from Dunedin Airport in New Zealand.
Talk about spic-and-span! The sun was nearly spotless for more than two weeks this month, a clue that the star may be nearing its next lull in activity, NASA says.