- Feb 4, 2011Long-awaited data collected by ESA's CryoSat mission has now been released to the public. Early results are helping scientists understand circulation in the Arctic Ocean and the links between climate and arctic ice. The data will help astrobiologists understand what is in store for the
- Dec 20, 2010A change in the Earth´s orbit, many scientists believe, transformed the "Green Sahara" into what is now the largest desert on the planet. While scientists are still trying to find out if the slow shift in orbit had rapid or gradual environmental consequences, they say
- Nov 4, 2010The Earth has plunged into a deep freeze several times in the past, with ice covering the land and sea for millions of years. Researchers are studying how the planet eventually escaped these cold spells, and whether Earth-like planets elsewhere in the galaxy may be
- Apr 11, 2010Four billion years ago, the Sun radiated less energy than it does today. Scientists once believed that greenhouse gases must have helped the Earth stay warm during this time. However, new research shows that the large oceans may have simply absorbed more heat.
- Oct 18, 2009De acordo com o cientista David Morrison da NASA, o rumor da internet amplamente difundido de que o mundo acabará em 2012 devido a algum evento astronômico é uma farsa. O Dr. Morrison atribui o engodo à “cosmofobia” abastecida por páginas virtuais de falsa ciência
- Oct 18, 2009According to NASA scientist David Morrison, the widespread Internet rumor that the world will end in 2012 due to some astronomical event is a hoax. Dr. Morrison attributes the hype to 'cosmophobia' fueled by fake science websites and people trying to cash in on public
- Sep 1, 2009In the early days of the solar system, our Sun would not have been hot enough to keep the Earth from freezing. However, liquid water was present on the early Earth. Now, scientists believe that greenhouse gasses may have played a role in keeping Earth's
- Apr 10, 2009Scientists have shown that variations in earthshine – the reflection of light from the Earth's land masses and oceans – can be viewed on the dark side of the moon. The study may help astronomers search for habitable, earth-like planets around distant stars.