Sky's Eerie X-Ray Glow Comes from 'Hot Bubble'
NASA image of diffuse X-ray background glow
July 28th, 2014
A mysterious glow that fills the sky and can be seen only with X-ray detectors has been explained. Much of the glow, discovered more than 50 years ago, is produced from hot gas lurking in a giant cavity of space some 300 light-years from the sun.
Read More »
To Capture the Milky Way, Capture the Landscape
the milky way, photography, how to
July 23rd, 2014
A lone tree, 16 shots, and a stunning view of the Milky Way.
Read More »
Searching for Alien Life in the Universe? Don't Look for E.T.
Alien planet
July 15th, 2014
For the first time in history, humanity is within reach of finding Earth-like planets where life exists, but these extraterrestrials may not take the form of intelligent beings, experts say.
Read More »
My Love Affair with the Moon (Op-Ed)
first quarter moon
July 27th, 2014
Fix your gaze upon the moon.
Read More »
Capturing a Comet-Galaxy Conjunction
Comet Pan-STARRS and Andromeda Galaxy
July 15th, 2014
A comet-galaxy conjunction is a rare opportunity for amateur astronomers.
Read More »
Salt on Mars May Have Melted Red Planet's Ice
Gully Channels on Mars
July 7th, 2014
Water could have flowed on the surface of Mars with the help of salts in the Martian soil that can melt ice, just as salts on Earth can be used to melt ice on slippery winter roads and sidewalks, researchers say.
Read More »
Alien Smog: How Pollution Could Help Locate E.T.
Alien Planet's Polluted Atmosphere
July 25th, 2014
In the search for life beyond Earth, astronomers should look for signs of pollution in the atmospheres of alien planets outside the Earth's solar system, a new study says.
Read More »
Why Extraterrestrial Life May Need Alien Oceans
Ocean exoplanet
July 21st, 2014
Scientists searching for planets where E.T. may live have homed in on places where liquid water could exist. But a livable world may require not just water, but oceans, a new study suggests.
Read More »
Spectacular 'Supermoon' Rises This Weekend
supermoon over washington monument
July 11th, 2014
You might want to step outside tomorrow night (July 12), when a bulging "supermoon" will rise in the evening sky. The event coincides with Manhattanhenge, when the setting sun will align along the east-west streets in the grid of Manhattan.
Read More »