Space
-
Astronomy
Astronomers get the spin on black holes
Recording the X-ray flashes emitted by matter as it plunges into one of these gravitational beasts, astronomers last week reported strong evidence that black holes spin like whirling dervishes, dragging space-time along with them.
By Ron Cowen -
Astronomy
Have scientists seen planets in the making?
Astronomers may finally have glimpsed a key step in the construction of a planet.
By Ron Cowen -
Astronomy
Solar cannibalism
Billion-ton clouds of charged gas hurled from the sun can overtake and eat their slower-moving gaseous brethren, complicating predictions of when and if one of these clouds might strike Earth.
By Ron Cowen -
Astronomy
Raging sun provides earthly light show
At the tumultous peak of its 11-year activity cycle, the sun is spitting out X-ray flares and belching giant clouds of high-energy particles at a furious rate.
By Ron Cowen -
Astronomy
Gamma-ray bursts reveal distant galaxies
A gamma-ray burst recorded Feb. 22, one of the brightest ever detected, is proving to be the strongest evidence so far that these cosmic flashbulbs originate in star-forming regions of distant galaxies and are generated by the explosive death of massive stars.
By Ron Cowen -
Astronomy
Eye on the Universe
For more than a decade, the Hubble Space Telescope has provided astronomers with astonishing views of the universe. This week, the Exploratorium in San Francisco hosts a series of Webcasts from the Space Telescope Science Institute in Baltimore to present a behind-the-scenes peek at how the space telescope is managed. Also check out several collections […]
By Science News -
Astronomy
Searching for a lost craft
A recent Department of Defense analysis of images of the Red Planet may have located a lost spacecraft on Mars, but NASA says the images could just be electronic noise.
By Ron Cowen -
Astronomy
Probes find a new plume on Io
Two spacecraft jointly eyeing Jupiter's moon Io, the most volcanically active body in the solar system, have spotted a towering new plume.
By Ron Cowen -
Astronomy
A comet’s odd orbit hints at hidden planet
Far beyond the solar system's nine known planets, a body as massive as Mars may once have been part of our planetary system, and it might still be there.
By Ron Cowen -
Astronomy
A Dark Force in the Universe
Cosmologists are thinking dark thoughts about what kind of mystery force may be contorting the cosmos, pushing galaxies apart at a faster and faster rate.
By Ron Cowen -
Astronomy
Starry Data Support Revved-Up Cosmos
Astronomers have confirmed one of the weirdest properties of the universe: Some mysterious force is pushing galaxies apart at a faster and faster rate.
By Ron Cowen -
Astronomy
Some of galaxy’s dark matter comes to light
A new study adds to the evidence that astronomers have unveiled some of the dark matter in our galaxy and that it's pretty ordinary stuff—white dwarfs, the cold, compact embers of low-mass stars.
By Ron Cowen