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Showing posts with the label earth

Astronomers go to the ends of the Earth to see cosmic carbon

The  carbon cycle  is central to life on Earth. It describes how carbon flows between living organisms, and the ocean, atmosphere and rock of our planet, and is driven by the energy from our sun. But a  carbon cycle  also exists for our galaxy, and astronomers are opening new wind…

Artificial object in trans-lunar orbit to impact Earth on November 13

Get ready for a man-made fireball. A object discovered by the Catalina Sky Survey on Oct 3rd temporarily designated WT1190F is predicted to impact the Earth about 60 miles (100 km) of the southern coast of Sri Lanka around 6:20 Universal Time (12:20 a.m CST) on November 13.

Finding new worlds

Astronomers have used many different methods to discover planets beyond the solar system, but the most successful by far is transit photometry, which measures changes in a star's brightness caused by a mini-eclipse. When a planet

Google's Project Loon internet balloons to circle Earth

Image copyright Google Image caption Google's Project Loon superpressure balloons have already flown millions of kilometres around the world Google believes it is on course to have enough internet-beaming balloons in the stratosphere to form a ring over part of the world next yea…

New report identifies four ways to reduce health risks from climate pollutants

A new WHO report highlights the urgent need to reduce emissions of black carbon, ozone and methane - as well as carbon dioxide – which all contribute to climate change. Black carbon, ozone and methane – frequently described as short-lived climate pollutants (SLCPs) - not only produce a …