Dale Andersen: Wayne Pollard and I just returned from a 30 km run (by skidoo) out to the mouth of Expedition Fiord where we have one in a series of […]
Methane (CH4) is an important greenhouse gas in the Earth’s atmosphere, accounting for approximately 20% of the observed greenhouse effect. With an atmospheric lifetime of about ten years, methane levels […]
The current mean temperature on the equator of Mars is a blustery 69 degrees below zero Fahrenheit. Scientists have long thought that the Red Planet was once temperate enough for […]
Ok, well, this is it folks, one last email and then I’m on a plane back to LA. I’ve been in New Zealand for a bit and I’ve finally had […]
Hello again from Antarctica, Ok, well, I’m back at McMurdo Station. All went very well in the field – our instruments worked great, we collected lots of data, and had […]
INTRODUCTION Our existing knowledge of extraterrestrial mineralogy has been gained largely from analyses of returned or collected samples — returned samples and collected meteorites from the Moon, meteorites from Mars, […]
NASA researchers have the strongest evidence yet that one of Jupiter’s most mysterious moons hides a fermenting ocean of water underneath its icy coat. This evidence comes from magnetic readings […]
In June 2000 the world got another dose of Mars hysteria similar, but more limited in amplitude, to the attention that accompanied the ALH84001 Mars meteorite announcement in 1996. The […]
In 1996 the world held its breath for a moment as David McKay and Everett Gibson from NASA’s Johnson Space Center revealed evidence which they felt pointed to the distinct […]
On the same day that NASA was announcing the apparent presence of liquid water near the surface of Mars, another research team announced that Mars once had salty oceans like […]
