Laser makes sure food is fresh

Minced meat, bread, fruit juice and many other foods are packaged in a protective gas which extends their shelf life. There is currently no good method to check whether the packaging has the correct gas content. However, ...

Snowball Earth hypothesis challenged

The hypothesis that the Earth was completely covered in ice 635 million years ago has received a serious blow. The atmospheric concentration of CO2 during that period was much lower than previously thought, according to a ...

A pulsar's mysterious tail

(PhysOrg.com) -- A spinning neutron star is tied to a mysterious tail -- or so it seems. Astronomers using NASA's Chandra X-ray Observatory have found that this pulsar, known as PSR J0357+3205 (or PSR J0357 for short), apparently ...

Hubble telescope makes one millionth science observation

NASA's Hubble Space Telescope crossed another milestone in its space odyssey of exploration and discovery. On Monday, July 4, the Earth-orbiting observatory logged its one millionth science observation during a search for ...

An Intergalactic Weather Map

(PhysOrg.com) -- This composite image shows an intergalactic "weather map" around the elliptical galaxy NGC 5813, the dominant central galaxy in a galaxy group located about 105 million light years away from Earth.

Hubble snaps sharp image of cosmic concoction (w/ Video)

(PhysOrg.com) -- A colourful star-forming region is featured in this stunning new NASA/ESA Hubble Space Telescope image of NGC 2467. Looking like a roiling cauldron of some exotic cosmic brew, huge clouds of gas and dust ...

Old diving tank air extends CSIRO Air Archive

Atmospheric scientists believe air contained in disused dive tanks can potentially extend what is already the longest record of greenhouse gases in the Southern Hemisphere.

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