Iran to unveil new home-built satellite: report

Space & Earth / Space Exploration

10 hours ago | 4.5 / 5 (2) | 1

Iran will unveil a new home-built satellite in February, a newspaper reported Thursday, amid Western concerns that Tehran is using its nuclear and space industries to develop atomic and ballistic weapons.

Keck Telescopes Take Deeper Look at Planetary Nurseries

Space & Earth / Astronomy

22 hours ago | 4.7 / 5 (7) | 0

(PhysOrg.com) -- Astronomers using the W. M. Keck Observatory have peered far into a young planetary system, giving an unprecedented view of dust and gas that might eventually form planets similar to Jupiter, ...

Global warming likely to be amplified by slow changes to Earth systems

Space & Earth / Earth Sciences

Dec 20, 2009 | 2.6 / 5 (38) | 45

Researchers studying a period of high carbon dioxide levels and warm climate several million years ago have concluded that slow changes such as melting ice sheets amplified the initial warming caused by greenhouse ...

Computer simulation strengthens link between climate change and release of subsea methane

Space & Earth / Earth Sciences

Dec 17, 2009 | 4.3 / 5 (22) | 41

(PhysOrg.com) -- A first-of-its-kind computer simulation that mirrors real-world observations of methane bubbling up from a seabed in the Arctic Ocean provides further evidence that warming oceans may unleash ...

Study: Earth's polar ice sheets vulnerable to even moderate global warming

Space & Earth / Earth Sciences

Dec 16, 2009 | 2.8 / 5 (45) | 40

A new analysis of the geological record of the Earth's sea level, carried out by scientists at Princeton and Harvard universities and published in the Dec. 16 issue of Nature, employs a novel statistical approa ...