Radiation emitted in the vicinity of black holes could be used to measure distances of billions of light years, says researcher.

In January, 2014, Earth will pass through a stream of fine-grained debris from Comet ISON. Scientists say the resulting shower could have some interesting properties.

Astronomers have used NASA's Hubble Space Telescope to photograph the iconic Horsehead Nebula in a new, infrared light to mark the 23rd anniversary of the famous observatory's launch aboard the space shuttle Discovery on April 24, 1990.

NASA's Kepler mission has discovered two new planetary systems that include three super-Earth-size planets in the "habitable zone," the range of distance from a star where the surface temperature of an orbiting planet might be suitable for liquid water.

The National Audubon Society has launched a new Citizen Science project to document hummingbird sightings across the country, using a free mobile app that identifies bird species as well as the plants that feed them.

Researchers have developed a very inexpensive tactile sensor for robotic hands that is sensitive enough to turn a brute machine into a dextrous manipulator.

A team of astronomers has discovered a dust-filled, massive galaxy churning out stars when the cosmos was a mere 880 million years old -- making it the earliest starburst galaxy ever observed.

A team of astronomers has used the new ALMA (Atacama Large Millimeter/submillimeter Array) telescope to pinpoint the locations of over 100 of the most fertile star-forming galaxies in the early universe.

It may be possible soon to charge cell phones, change the tint on windows, or power small toys with peel-and-stick versions of solar cells.

In the last thirty years, vegetation has changed significantly the world over. Until recently, the extent to which the climate or humankind was responsible remained unclear.