Science - page 15

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Mercury and Jupiter visible in the evening

This week, sky watchers have a rare opportunity to see Mercury at its best as NASA's MESSENGER probe prepares to enter orbit around the innermost planet. Look west at sunset: Mercury pops out of the evening twilight alongside Jupiter for a fantastic sky show.Peter

March 15, 2011

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Brown dwarfs discovered?

Kevin Luhman of Pennsylvania State University in University Park and colleagues have used NASA's infrared Spitzer Space Telescope to detect the glow of what appears to be a brown dwarf at just 30 °C (Astrophysical Journal Letters, DOI:

March 13, 2011

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Astronomers find giant, previously unseen structure in our galaxy

NASA's Fermi Gamma-ray Space Telescope has unveiled a previously unseen structure centered in the Milky Way - a finding likened in terms of scale to the discovery of a new continent on Earth. The feature, which spans 50,000 light-years, may be the remnant of an

March 12, 2011

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Arctic's spring phytoplankton blooms arrive earlier

When summer comes to the Arctic, the tiny plants that feed the ocean's food chain form green blooms in the water. In some Arctic waters, the peak of this bloom has been arriving earlier every year since 1997, a study has found. These areas, where peak bloom

March 08, 2011

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Scientists are sounding the alarm: the mysterious cracks appear across the planet

Scientists do not know what to think about: South America is bursting at the seams. In southern Peru, suddenly appeared a huge crack length of 3 km and a width of about 100 meters.Anomaly occurred in the district Huakullani Chukuito province near the famous Lake

March 06, 2011

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NASA Scientist Claims Evidence of Alien Life on Meteorite

We are not alone in the universe! Alien life forms may have a lot more in common with life on Earth than we had previously thought. That's the stunning conclusion one NASA scientist has come to, releasing his groundbreaking revelations in a new study in the March

March 05, 2011

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German satellite could collide with Earth in late 2011

A German satellite called ROSAT weighing 2,426 kilograms (nearly 3 tons) is expected to crash from the sky in late 2011, according to calculations made by the German Space Agency, commonly known by the German acronym DLR. "We expect the satellite to re-enter the

March 05, 2011

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GOCE delivers on its promise

ESA’s GOCE satellite has reached its ambitious goal of mapping Earth's gravity with unprecedented precision. In two short years, the sophisticated satellite has collected the measurements needed to record the 'geoid' reference shape of our planet. "GOCE is one

March 05, 2011

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Dusty spiral galaxy is closer than once thought

The star-forming regions of a nearby spiral galaxy glow bright pink in a spectacular new image from a telescope atop a Chilean peak. And the galaxy's actually slightly closer than astronomers once thought, researchers say. The glowing pink clouds seen in the...

March 02, 2011

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New insights on changes in the ozone layer

German Aerospace Center researchers have been instrumental in the preparation of a report on the changes in the Ozone Layer for the World Meteorological Organization (WMO). The report was published online by the Geneva-based WMO in January. Recent estimates suggest

March 01, 2011

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What's Hitting Earth?

Every day about 100 tons of meteoroids -- fragments of dust and gravel and sometimes even big rocks – enter the Earth's atmosphere. Stand out under the stars for more than a half an hour on a clear night and you'll likely see a few of the meteors produced

March 01, 2011

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First cosmic census estimates there are 50 billion planets in Milky Way

Scientists have estimated the first cosmic census of planets in our galaxy and the numbers are astronomical - at least 50 billion planets in the Milky Way. And some 500 million of those planets are in what is known as the Goldilocks zone, where the climate is thought

February 27, 2011

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Asteroid's Record-Breaking Brush with Earth Changed It Forever

A tiny asteroid that zipped by Earth this month made the closest-ever approach to our planet without hitting it, an encounter that changed its place in our solar system forever, NASA scientists say. The asteroid, called 2011 CQ1, came within 3,400 miles (5,471

February 26, 2011

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Two planets found sharing one orbit!

Buried in the flood of data from the Kepler telescope is a planetary system unlike any seen before. Two of its apparent planets share the same orbit around their star. If the discovery is confirmed, it would bolster a theory that Earth once shared its orbit with a

February 25, 2011