Stars
 

A cosmic quirk helps astronomers pinpoint the farthest star ever seen
More than halfway across the universe, an enormous blue star nicknamed Icarus is the farthest individual star ever seen. Normally, it would be much too faint to view, even with the world’s largest telescopes.... full story »

Astronomers See Distant Eruption as Black Hole Destroys Star
For the first time, astronomers have directly imaged the formation and expansion of a fast-moving jet of material ejected when the powerful gravity of a supermassive black hole ripped apart a star that wandered too close to the massive monster.... full story »

Astronomers Discover Deep-Fried Planets: Two Earth-Sized Planets Around Dying Star That Has Passed the Red Giant Stage
Two Earth-sized planets have been discovered around a dying star that has passed the red giant stage. ... full story »

Young Star Rebels Against Its Parent Cloud
Hubble's Wide Field Camera 3 has captured this image of a giant cloud of hydrogen gas illuminated by a bright young star. The image shows how violent the end stages of the star-formation process can be, with the young object shaking up its stellar nursery.... full story »

First Low-Mass Star Detected in Globular Cluster
Even the most powerful high-tech telescopes are barely able to record remote low-mass and thus faint stars.... full story »

Tycho's Star Shines in Gamma Rays, NASA's Fermi Shows
In early November 1572, observers on Earth witnessed the appearance of a "new star" in the constellation Cassiopeia, an event now recognized as the brightest naked-eye supernova in more than 400 years. It's often called "Tycho's supernova" after the great Danish astronomer Tycho Brahe... full story »

'Supernova of a Generation' Shows Its Stuff: Astronomers Determine How Brightest and Closest Stellar Explosion in 25 Years Happened
It was the brightest and closest stellar explosion seen from Earth in 25 years, dazzling professional and backyard astronomers alike. ... full story »

Powerful Detectors On Hawaiian Telescope to Probe Origins of Stars, Planets and Galaxies
The world's largest submillimeter camera is now ready to scan the universe, including faint and faraway parts never seen before.... full story »

Vampire Star Reveals its Secrets
Astronomers have obtained the best images ever of a star that has lost most of its material to a vampire companion. ... full story »

Christmas burst reveals neutron star collision
A strangely powerful, long-lasting gamma-ray burst on Christmas Day, 2010 has finally been analyzed to the satisfaction of a multinational research team.... full story »

Top Science News

One black hole or two? Dust clouds can explain puzzling features of active galactic nuclei
Researchers at the University of California, Santa Cruz (UCSC), believe clouds of dust, rather than twin black holes, can explain the features found in active galactic nuclei (AGNs).... full story »

Measuring each point of a beam of light
If you want to get the greatest benefit from a beam of light-whether to detect a distant planet or to remedy an aberration in the human eye-you need to be able to measure it.... full story »

Success of blood test for autism affirmed
One year after researchers published their work on a physiological test for autism, a follow-up study confirms its exceptional success in assessing whether a child is on the autism spectrum.... full story »

Possible Subsurface Lake near Martian South Pole
A new paper published in Science this week suggests that liquid water may be sitting under a layer of ice at Mars' south pole.... full story »

Wireless Pressure-Sensing Eye Implant Could Help Prevent Blindness
Researchers at Caltech have developed an implantable pressure sensor that can reside in the human eye while wirelessly sending data about the eye's health to the medical professionals.... full story »

New photodetector could improve night vision, thermal sensing and medical imaging
Using graphene, engineers have invented a new type of photodetector that can work with more types of light than its current state-of-the-art counterparts.... full story »

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