The Oldest Brown Dwarf Most of the halo stars previously known are members of stellar aggregates called globular clusters. Recently, however, large deep sky surveys have improved our knowledge on old halo stars living outside those clusters. Halo stars with masses from 10 times to only a few tenth...
When Roland Dechesne pulled away from his property early Tuesday morning, a bright blue-white object racing in the sky caught his eye. At first he thought it was an airplane, but within seconds the 48-year-old amateur astronomer realised the streaking object was a meteor. "I saw only about th...
First Light for Gamma-Ray Burst Chaser at La Silla A new instrument has seen First Light at the ESO La Silla Observatory. Equipping the 2.2-m MPI/ESO telescope, GROND takes images simultaneously in seven colours. It will be mostly used to determine distances of gamma-ray bursts. Taking images in d...
Title: On the progenitor of SN 2005gl and the nature of Type IIn supernovae
Authors: Avishay Gal-Yam (Caltech), D. C. Leonard (SDSU), D. B. Fox (PSU), S. B. Cenko (Caltech), A. M. Soderberg (Caltech), D.-S. Moon (Caltech), D. J. Sand (Steward), W. Li (UCB), A. V. Filippenko (UCB),...
An international team of astrophysicists, involving several research groups in Spain, has discovered a source of very high energy gamma rays in the region of the distant galaxies 3C 66A and 3C 66B. This new gamma emission, observed from the MAGIC telescope in La Palma (Canary Islands) is not consis...
8P/Tuttle is a periodic comet in our solar system. Comet 8P/Tuttle is responsible for the Ursids meteor shower in late December. Read more This comet may reach mag 6 in January. pre>Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 2007 12 01...
It had circled the sun for thousands, perhaps billions, of years when a chance collision sent it streaking toward Earth. Slivers of light flashed in the Southern Oregon sky for a few seconds as the fireball shattered in atmospheric friction, its pieces scattering across Sams Valley. There were no c...
Scientists are hot on the trail of materials that use light to break down contaminants for environmental cleanup or split water for hydrogen fuel production. With a splash of UV light, titanium dioxide can do just that, but researchers would like to expand its repertoire to use visible light. Dopin...
Mars Global Surveyor Mars Orbiter Camera
This picture is a mosaic of two Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) images of sedimentary rock outcrops in Aram Chaos, near Ares Vallis, Mars.
Aram Chaos is an impact crater that was nearly completely filled with ma...
Tens of thousands of people across Britain should get their first view of the Moon through a telescope during next week's 'Spring Moonwatch', which runs from 28th March to 5th April. Together with the Autumn and Schools Moonwatch weeks (which will take place in October and November), it is a key even...
The ESO Very Large Telescope has taken the best image ever of a strange and chaotic duo of interwoven galaxies. The images also contain some surprises - interlopers both far and near. Sometimes objects in the sky that appear strange, or different from normal, have a story to tell and prove scientific...
Though they are the largest and most widely scattered objects in the universe, galaxies do go bump in the night. The Hubble Space Telescope has photographed many pairs of galaxies colliding. Like snowflakes, no two examples look exactly alike. This is one of the most arresting galaxy smash-up imag...
Credit: X-ray: NASA/CXC/Univ of Iowa/P.Kaaret et al.; Optical: NASA/ESA/STScI/Univ of Iowa/P.Kaaret et al. This composite image of the Medusa galaxy (also known as NGC 4194) shows X-ray data from NASA's Chandra X-ray Observatory in blue and optical light from the Hubble Space Telescope in oran...
1 2
)
(Preview)
