| Jul 18, 2014
| 4:20 PM
Our sun has gone quiet. Almost too quiet.
A few weeks ago it was teeming with sunspots, as you would expect since we are supposed to be in the middle of solar maximum -- the time in the sun's 11-year cycle when it is the most active.
But now, there is...
| Jun 13, 2014
| 12:12 PM
Feelin’ the heat? Three massive solar flares could “shockwave” Earth today.
That’s the upshot from NASA and NOAA, after powerful plasma ejections erupted from the sun earlier this week. The flares pose no danger to humans,...
| Jun 17, 2014
| 3:00 AM
High in the Eastern Sierra, a pack of huskies is howling in the shadow of snow-covered peaks.
Drawn by their song, 10 teenage members of the Earth to Sky Calculus club break from their work and gather on a cabin deck. Before long, they're howling too....
| Jun 10, 2014
| 3:08 PM
The sun unleashed two X-class solar flares in the span of one hour and 10 minutes Tuesday morning, and there is a good chance that more may be coming soon.
Solar flares are big bursts of radiation that come from dark areas of the sun called sunspots. An...
| Sep 2, 2014
| 1:23 PM
New video provides an amazing view of a recent solar eruption captured by a NASA spacecraft orbiting the sun. Material can be seen bursting from the surface of the sun in an M-class coronal mass ejection.
What makes this footage particularly intriguing,...
| Sep 12, 2013
| 4:47 PM
After 36 years of space exploration and months of heated argument among scientists, NASA officials confirmed Thursday that Voyager 1 entered into interstellar space more than a year ago.
The final piece of evidence that led scientists to conclude that...
| Sep 12, 2013
| 6:50 PM
And we never even got a chance to say goodbye.
After 36 years of space exploration and months of heated argument among scientists, NASA officials confirmed Thursday that Voyager 1 had indeed crossed into interstellar space more than a year ago.
| Sep 17, 2013
| 6:07 PM
Circling Earth at an altitude of more than 22,000 miles are a host of satellites that give us access to some of the things we love most: the Internet, mobile phones and premium TV.
But space is a hostile environment, even for a chunk of metal. Our...
| Apr 13, 2013
| 4:50 PM
A solar flare that was the largest of the year could create a rare chance to see the aurora borealis, or "Northern Lights", from Maryland on Saturday night.
The flare occurred Thursday at 3:16 a.m. and was associated with what is known as a coronal mass...
| May 13, 2013
| 1:38 PM
The sun erupted for the second time in less than 24 hours Monday morning, releasing the most powerful solar flare so far of 2013.
Monday's solar flare, which peaked at 9 a.m. Pacific time, came just 14 hours after the second largest solar flare of 2013,...
| May 14, 2013
| 1:56 PM
The sun put on another fireworks display Monday evening, releasing a dramatic flash of ultraviolet radiation and sending solar matter hurtling through space.
It was the third major solar flare in 24 hours and the most powerful of 2013. The solar flare...