Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror

Submission Summary: 0 pending, 23 declined, 6 accepted (29 total, 20.69% accepted)

Earth

Submission + - Earth and Moon from an Alien's Perspective

krygny writes: NASA's Deep Impact spacecraft has created a video of the moon transiting (passing in front of) Earth as seen from the spacecraft's point of view 31 million miles away. Scientists are using the video to develop techniques to study alien worlds. "Making a video of Earth from so far away helps the search for other life-bearing planets in the Universe by giving insights into how a distant, Earth-like alien world would appear to us," said University of Maryland astronomer Michael A'Hearn, principal investigator for the Deep Impact extended mission, called EPOXI. "Our video shows some specific features that are important for observations of Earth-like planets orbiting other stars," said Drake Deming of NASA's Goddard Space Flight Center ... "A 'sun glint' can be seen in the movie, caused by light reflected from Earth's oceans, and similar glints to be observed from extrasolar planets could indicate alien oceans. Also, we used infrared light instead of the normal red light to make the color composite images, and that makes the land masses much more visible."
Media

Submission + - Global Warming Criticism Ignored by Media

krygny writes: EARTHtimes.org reports: "A new analysis of peer-reviewed literature reveals that more than 500 scientists have published evidence refuting at least one element of current man-made global warming scares. (...) Despite being published in such journals such as Science, Nature and Geophysical Review Letters, these scientists have gotten little media attention.
NASA

Submission + - First Image of "Noctilucent" Clouds from S

krygny writes: NASA has released the first image of night-shining, or noctilucent, clouds that appear in the atmosphere near the poles during the summer months in each hemisphere. "The first observations of these "night-shining" clouds by a satellite named "AIM" which means Aeronomy of Ice in the Mesosphere, occurred above 70 degrees north latitude on May 25. People on the ground began seeing the clouds on June 6 over Northern Europe. AIM is the first satellite mission dedicated to the study of these unusual clouds." ... "Very little is known about how these clouds form over the poles, why they are being seen more frequently and at lower latitudes than ever before, or why they have been growing brighter."

Slashdot Top Deals

What this country needs is a good five dollar plasma weapon.

Working...