Now We Know How Mars Lost Its Atmosphere And Turned Nasty Cold

Mars would be much more clement if it still possessed a beefy atmosphere. Thanks to new measurements from NASA’s MAVEN spacecraft, we now have a definitive answer on why Mars evolved from relatively warm and benign place to today’s frigid desert where nighttime temperatures routinely plunge to –100°F (–73°C). Blame it on the sun! Solar wind…
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Trump’s NASA Budget: What It Cuts, What It Keeps

When it comes to space exploration, the White House budget ax does not bite as deeply as it might for other programs. The Trump administration requested $19.1 billion for NASA, a 0.8% decrease — about $200 million — from 2017. NASA’s cuts may look rosy at first glance, but that doesn’t mean a few key…
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Take A Wonderful Flight Over Mars / 41P Comet Update

An imaginary flight above the real Mars. Click here for the full-screen option – highly recommended! I started my day in orbit around Mars and can’t wait for you to join me. Just click the button and your journey to the Red Planet begins with a close approach to its largest moon, Phobos. The video, titled…
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‘Tah-Tah, Mars!’ Venus Prepares To Depart The Dusk

Aldebaran occultation on March 4, 2017 from Doug Bock Did you get a chance to see Aldebaran and the moon last night? I caught them early in twilight when thin clouds only bothered a little. Later, they thickened and “occulted” both star and moon for the remainder of the night. I hope your skies were…
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Crescent Moon Comeback / See Tonight’s Mars-Uranus Duet In Binoculars

Annular solar eclipse as viewed from Coyhaique, Chile Let’s start today with time lapse video of Sunday’s “ring of fire” solar eclipse. It mixes images of sun in eclipse with the human scene. Notice that even at maximum eclipse — when most of the sun was covered — it was still “sunny” outside. It’s hard to…
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