stars

4 Sky Events This Week: Ghostly Glows and Rocky Worlds

Ethereal apparitions from the dusty inner solar system this week seem certain to delight sky-watchers.  Zodiacal lights. Starting Monday, March 24, and continuing through the week, keen-eyed sky-watchers in the mid-northern latitudes will witness the ghostly glow of the zodiacal lights, ...

Comet Collisions Spotted Around Distant Star

Violent comet crashes are occurring around a star easily visible to sky-watchers, astronomers report. The star is one already known to harbor a burgeoning solar system. Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) Telescope in northern Chile announced ...

Lopsided Supernova Blasts Uncovered

Some jumbo stars commit stellar suicide in surprisingly lumpy explosions, according to a new study in Nature. Scientists led by Caltech’s Brian Grefenstette looked at Cassiopeia A, a supernova that first appeared in nighttime skies around the year 1670. The ...

Newfound Star May Be Oldest in the Universe

The ultimate age barrier has been broken. The oldest living star in the entire universe may have been discovered—one formed only one or two hundred million years after the Big Bang itself. The ancient star, born some 13.6 billion years ...

6 Sky Events This Week: Leo’s Heart and Goddess of Love

Just in time to celebrate Valentine’s Day, the silvery moon guides sky-watchers to a stellar heart, just as the goddess of love shines at her brightest this week. Moon joins Jupiter. Check out the king of planets after nightfall ...

Watch Asteroid Take the Bull by the Horns

A glimpse of a large asteroid comes to delight sky-watchers this month, silently sailing its way through a cosmic bull’s horns and past a famous supernova remnant. In the next few weeks, the asteroid Herculina, the 532nd asteroid to ...

Monster Storms Raging on Failed Stars

Hurricanes as large as planets may sweep across the face of brown dwarfs—failed stars bigger than planets but smaller than real stars. A new study looks at 44 brown dwarfs using the infrared camera of NASA’s Spitzer space telescope. ...

Sneak-Peek: Top 5 Sky Events of 2014

  The New Year promises a pair of lunar disappearing acts and a potential surprise meteor shower, among other celestial delights. While scores of amazing astronomical phenomena are in the offing, here are our picks for sky-watching events worth circling on ...