July 18, 2010: NASA-funded researchers are monitoring a big event in our planet’s atmosphere. High above Earth’s surface where the atmosphere meets space, a rarefied layer of gas called “the thermosphere” recently collapsed and now is rebounding again.
“This is the biggest contraction of the thermosphere in at least 43 years,” says John Emmert of the Naval Research Lab, lead … Read the rest of this article
An observing campaign is being carried out on M31_V1, the first variable star discovered in M31 by Edwin Hubble. Dr. John Grunsfeld, Deputy Director of the Space Telescope Science Institute, plans to observe M31_V1 with the Hubble Space Telescope (HST), and needs to plan … Read the rest of this article
The first spacecraft designed by NASA to orbit Mercury is giving scientists a new perspective on the planet’s atmosphere and evolution.
Launched in August 2004, the Mercury Surface, Space Environment, Geochemistry and Ranging spacecraft, known as MESSENGER, conducted a third and final flyby of Mercury in September 2009. The probe completed a critical maneuver using the planet’s gravity to remain … Read the rest of this article
Asteroid Lutetia has been revealed as a battered world of many craters. ESA’s Rosetta mission has returned the first close-up images of the asteroid showing it is most probably a primitive survivor from the violent birth of the Solar System.
The flyby was a spectacular success with Rosetta performing faultlessly. Closest approach took place at 18:10 CEST on July 10th, … Read the rest of this article
It’s every vacationer’s dream: You stretch out on a white sandy beach for a luxurious nap under the South Pacific sun. The caw of distant gulls wafts across the warm sea breeze while palm fronds rustle gently overhead. You take it all in through half-closed eyes.
Could Paradise get any better? This weekend it will.
On Sunday, July 11th, the … Read the rest of this article
The Sun Now (Visible light)
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The Sun Now (H-Alpha light)
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Aurora Oval
(Northern Hemisphere) |
Aurora Oval
(Southern Hemisphere) |
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