25% of sharks and rays at high risk of extinction

Last Updated: Wednesday, January 22, 2014, 12:40

A new assessment by the International Union for Conservation of Nature (IUCN) has revealed that a quarter of the world`s sharks and rays are at risk of extinction.

Black hole`s birth kills `exploding` radio star

Last Updated: Sunday, December 22, 2013, 12:02

Astronomers have found a new population of exploding stars that "switch off" their radio transmissions before collapsing into a Black Hole.

Solar activity responsible for no more than 10% of global warming

Last Updated: Sunday, November 10, 2013, 15:06

A new study has suggested that changes in solar activity have contributed no more than 10 per cent to global warming in the 20th century.

Largest fragment of meteorite in Russia found

Last Updated: Wednesday, October 16, 2013, 20:33

Divers have found the largest piece so far of a meteorite which hit Russia`s Chelyabinsk region in February this year, a scholar said Wednesday.

New microscope uses neutrons to create hi-res images

Last Updated: Sunday, October 6, 2013, 16:11

MIT and NASA researchers have devised a new microscope that uses neutrons - subatomic particles with no electrical charge - instead of beams of light or electrons to create high-resolution images.

Scientists come closer to making `elusive` nuclear fusion reaction a reality

Last Updated: Wednesday, September 25, 2013, 15:07

Researchers from National Ignition Facility have revealed that they are a lot more closer to igniting a self-sustained fusion reaction with high yields of energy.

Scientists take step closer to finding cosmic ray`s origins

Last Updated: Sunday, September 1, 2013, 11:30

Cosmic rays are known to reach energies above 100 billion giga-electron volts (1011 GeV).

Rays found on Mexican beach were dumped

Last Updated: Wednesday, July 24, 2013, 21:17

The more than 200 stingrays and manta rays found on popular tourist beaches in the eastern Mexican state of Veracruz last week were dumped in the area and did not die from ingesting toxic substances.

Sun`s lost its head, pilots and high flyers beware

Last Updated: Friday, July 5, 2013, 10:22

Air passengers, beware. Your health and that of the crew is at stake.

Most distant blazar may hold new mystery

Last Updated: Friday, April 19, 2013, 14:28

New observations of the blazar known as PKS 1424+240 showed that it is the most distant known source of very-high-energy gamma rays, but its emission spectrum now appears highly unusual in light of the new data.

Cassini spacecraft sheds light on how cosmic rays are accelerated

Last Updated: Tuesday, February 19, 2013, 14:18

The international Cassini spacecraft has detected particles being accelerated to ultra-high energies, similar to the acceleration that takes place around supernova explosions .

Supernova remnants really do produce cosmic rays

Last Updated: Friday, February 15, 2013, 14:47

Analysis of data from NASA`s Fermi Gamma-ray Space Telescope has provided the first clear-cut evidence the expanding debris of exploded stars produces some of the fastest-moving matter in the universe.