Astronomy
- Astronomy
Gravity’s lens: Finding a dim cluster
Relying solely on a gravitational mirage rather than visible images, astronomers have discovered a previously unknown cluster of galaxies and measured its distance from Earth.
- Astronomy
When Branes Collide
A controversial new theory proposes that our universe existed as a cold, featureless void for eons, until a parallel universe floating through a hidden fifth dimension crashed into it, igniting the Big Bang.
- Astronomy
X rays trace fierce stellar winds
A high-resolution X-ray view of the Rosette nebula, a nearby star-forming region, has revealed for the first time that the stellar winds from massive stars heat surrounding gas to a scorching 6 million kelvins.
- Astronomy
Galaxy’s Black Hole: X Rays Mark Spot
An X-ray outburst from the center of our galaxy is providing compelling new evidence that a monster black hole lurks at the Milky Way's core.
- Astronomy
Shocks jolt jet set galaxy, X rays reveal
A new image of the nearby galaxy Centaurus A reveals the first details of a phenomenon associated with the core of many galaxies: a huge jet of high-energy particles shooting out from a supermassive black hole.
- Astronomy
Astronomers spy familiar planetary system
Studying a star in the Big Dipper, astronomers have for the first time found a planetary system that reminds them of home.
- Astronomy
Eros: The movie
Close-up views of the asteroid 433 Eros, showing jagged rocks, fields of boulders, and debris-filled craters, are featured in a minute-long movie.
- Astronomy
Senior star may have comets
Astronomers have found what could be the first evidence of water-bearing objects that orbit a star other than the sun.
- Astronomy
Light’s Debut: Good Morning, Starshine!
Astronomers have at last detected signs of one of the earliest and least-understood eras in the universe: the murky time just before the first stars and quasars flooded the cosmos with light.
- Astronomy
Anybody Out There?
This elaborate Web site brings together a wide variety of resources devoted to the question of life in the universe. Mounted by the European Organization for Nuclear Research (CERN) and other European agencies, the site serves as home base for a competition aimed at eliciting responses from European students to the possibility of extraterrestrial life. […]
- Astronomy
Ground-based telescope detects star’s corona
Astronomers using a ground-based telescope have for the first time observed near-ultraviolet light from the corona of a star other than our sun.
- Astronomy
When Galaxies Collide
Dramatic images from the largest computer simulation ever of a plausible collision between the Milky Way and Andromeda galaxies highlight this report from the National Partnership for Advanced Computational Infrastructure and the San Diego Supercomputer Center. Astrophysicist John Dubinski describes the science underlying the computations. Go to: http://www.npaci.edu/online/v4.9/galaxies2.html and http://www.cita.utoronto.ca/~dubinski/tflops/.
