NASA's newest solar observatory has taken its first photos of the lowest layers of the solar atmosphere, a mysterious and little-understood region of the sun. Full story
CAPE CANAVERAL, Florida (Reuters) - A small NASA telescope was poised for launch on Thursday on a mission to determine how the sun heats its atmosphere to millions of degrees, sending off rivers of particles that define the boundaries of the solar system. Full story
On Earth, polycyclic aromatic hydrocarbons, or PAHs, are best known as carcinogens and environmental pollutants, produced as byproducts of fuel burning. It turns out these complex hydrocarbons are also contributing to the thick orange-brown smog that cloaks Saturn's largest moon, Titan, researchers Full story
Dylan Dreyer tracks where the storms may be heading this weekend, from Texas to Ohio.
The amount of carbon dioxide in the atmosphere has surpassed a threshold that scientists say signals we are running out of time to reverse the impact of global warming. NBC’s Anne Thompson reports.
As Republicans block President Obama's nominee to head the EPA, Chris Hayes notes that carbon in the atmosphere is about to hit its highest level since the Pliocene Era, three to five million years ago, and Senator Sheldon Whitehouse smacks down a colleague who says God won't allow us to ruin the Ea
Chico State students rally against racially-tinged party atmosphere that has become common on holiday that honors civil rights and labor leader Cesar Chavez. KNVN's Bryan Callahan reports.
A meteor put on a spectacular show Friday as it entered the atmosphere on the East Coast. NBC’s Michelle Franzen reports.
The first observations of the lowest layers of the sun's atmosphere are seen in a handout image from NASA's Interface Region Imaging Spectrograph spacecraft released July 25, 2013. IRIS's first images show a multitude of thin, fiber-like structures that have never been seen before. The images also
An artist's conception shows how Mars' atmosphere was stripped away by charged particles from the sun.
NEW YORK, NY - DECEMBER 11: A general view of atmosphere at "12-12-12 The Concert For Sandy Production" Load-In at Madison Square Garden on December 11, 2012 in New York City.