Dan Vergano

Biggest Yellow “Hypergiant” Star Spotted

A jumbo star 1,300 times wider than the sun has surprised astronomers, who report it is the biggest yellow “hypergiant” star ever spotted. Dubbed HR 5171, the star is also surprising because a companion star was discovered orbiting it. “The two stars ...

Biggest Yellow “Hypergiant” Star Spotted

A jumbo star 1,300 times wider than the sun has surprised astronomers, who report it is the biggest yellow “hypergiant” star ever spotted. Dubbed HR 5171, the star is also surprising because a companion star was discovered orbiting it. “The two stars ...

Spacewalk Mishap Tied to Clogged Helmet Filter

An International Space Station mishap that nearly killed an astronaut last year happened because of a clogged spacesuit filter, a NASA investigation board said on Wednesday. The report also pointed to mission controllers not adequately investigating earlier signs of the ...

Sun Unleashes Monster Blast—Biggest in a Year

The sun looks plenty angry, now that it’s at the peak of its 11-year solar cycle. A powerful solar blast uncorked late Monday was the biggest one in more than a year, report space-weather officials. Erupting from an already ...

Sun Unleashes Monster Blast—Biggest in a Year

The sun looks plenty angry, now that it’s at the peak of its 11-year solar cycle. A powerful solar blast uncorked late Monday was the biggest one in more than a year, report space-weather officials. Erupting from an already ...

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 ...

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 ...

Newly Discovered Planet Wobbles as It Spins

A newly discovered planet wobbles as it spins, astronomers say, though it’s in no danger of falling down. The planet, dubbed Kepler-413b, wobbles as it spins around on its north-south axis circling its stars. The wobbles have altered ...

Newly Discovered Planet Wobbles as It Spins

A newly discovered planet wobbles as it spins, astronomers say, though it’s in no danger of falling down. The planet, dubbed Kepler-413b, wobbles as it spins around on its north-south axis circling its stars. The wobbles have altered ...

NASA Reveals Saturn’s View Of Earth

NASA has unveiled a gorgeous Cassini spacecraft look at the Earth, Mars and Venus, as seen from behind Saturn. In orbit around the ringed planet since 2004, Cassini set up the image when it passed into Saturn’s shadow on July 19, 2013. ...

NASA Reveals Saturn’s View Of Earth

NASA has unveiled a gorgeous Cassini spacecraft look at the Earth, Mars and Venus, as seen from behind Saturn. In orbit around the ringed planet since 2004, Cassini set up the image when it passed into Saturn’s shadow on July 19, 2013. ...

Mercury Astronaut Scott Carpenter Dies

An explorer in space and in the ocean, Mercury 7 astronaut Scott Carpenter, died Thursday, of complications related to a recent stroke. He was 88. A U.S. Navy reconnaissance pilot during the Korean War, Carpenter was selected as one of the ...

Mercury Astronaut Scott Carpenter Dies

An explorer in space and in the ocean, Mercury 7 astronaut Scott Carpenter, died Thursday, of complications related to a recent stroke. He was 88. A U.S. Navy reconnaissance pilot during the Korean War, Carpenter was selected as one of the ...

T. Rex Museum Move Stymied

What’s powerful enough to stop Tyrannosaurus rex in its tracks? The U.S. government shutdown, which halted the start of a trip for the “Wankel” T. rex from a Montana museum to its new home at the Smithsonian’s ...

T. Rex Museum Move Stymied

What’s powerful enough to stop Tyrannosaurus rex in its tracks? The U.S. government shutdown, which halted the start of a trip for the “Wankel” T. rex from a Montana museum to its new home at the Smithsonian’s ...