A device now seeking funding on Kickstarter offers a better way to get help when you need it -- by sending a helium balloon 150 feet in the air.
NASA followed the biggest sunspot in many years as it roamed across the face of the sun, releasing solar flares along the way.
In the space of a week, the largest sunspot seen in 24 years has erupted in six massive flares, five of which were categorised X-class.
An X-class solar flare -- the biggest class of solar flare -- has erupted from the sun straight towards Earth, and geomagnetic storms are on the way.
August 24 and 25 saw a surge in solar activity, with NASA's Solar Dynamics Observatory capturing a series of stunning photos of three coronal mass ejections.
IRIS is NASA's newest toy for studying the sun. It just observed its first solar eruption, and it was a doozy.
A new video shows a burst of light leaping off the sun that is so massive the space agency gives it an X-class rating, which denotes the most intense of all flares.
The sunspot that recently rolled across the surface of the sun while spewing out flares has been animated in a magnificent timelapse using NASA SDO images.
After 16 years, the versatile but elderly telephoto zoom now has a successor. The new 100-400mm lens has better optics and image stabilization, along with a higher price.
"It's officially Christmas," says one teary-eyed Tweeter -- watch the John Lewis ad that has become a British Christmas tradition.