Astrophysics - Stars Topics
Now you see it, now you don't
1999 — April 6, 2011
Amateur astronomers around North America captured striking videos of The Moonas it eclipsed the bright star Regulus on May 21.
Lifting the veil on Hubble's Constant
1999 — April 6, 2011
This story places today's HST measurements in context with history and background information about "Hubble's Constant," along with a primer on modern cosmology.
Mars & Spica
1999 — April 6, 2011
This week The Red Planetand the blue-white star Spica are shining in the night sky just 1 3/4 degrees apart. It's a show that star gazers won't want to miss.
Studying the Mysteries of the Titanium Star
1999 — April 6, 2011
When the Chandra X-ray Observatorytook its "first light" image, it wasn't looking at just another star shining in the darkness. It was watching a foundry distribute its wares to the rest of the galaxy.
Taking a ringside seat for a gamma-ray burst
1999 — April 6, 2011
Supercomputers are giving scientists a ringside seat for one of the most violent events in nature, the heart of a gamma ray burst. The "collapsar" model simulates a star that is too heavy to go supernova, and thus turns itself inside out.
Ode to a Grecian Conference
1999 — April 6, 2011
Black holes, neutron stars and other high energy phenomena were the focus of a NATO Institute held in Crete in June, 1999.
The Great Leonid Meteor Stormlet of 1997
1999 — Sept. 20, 2011
Newly released video shows a flurry of Leonids in 1997 that briefly rivaled the great meteor storm of 1966.
Chandra Spies Structure of Huge X-Ray Jets
1999 — April 6, 2011
A new image of the Centaurus A galaxy shows x-ray jets as long as our whole galaxy is wide. The image helps give new insight into what happens when galaxies collide.
Sunrise at the South Pole
1999 — April 6, 2011
Today's autumnal equinox heralds the dawn of a new day at the South Pole as Earth joins three other planets in the solar system where it is autumn in the northern hemisphere.
Just Passing By Earth
1999 — April 6, 2011
The Cassini spacecraft has completed a highly accurate flyby of Earth, giving the spacecraft a velocity boost for its journey to distant Saturn.