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 Artist’s impression of “mega-Earth” Kepler 10c. Credit: David A. Aguilar (CfA) Can you imagine a world that is 17 times as massive as Earth, but still rocky? Or two planets that are doomed to be swallowed up by their parent star in just a blink of astronomical time? While these scenarios sound like science fiction, these are real-life finds released today (June 2) at the American Astronomical Association meeting in Boston. Here’s a rundown of the finds about these planets in our ever-more-amazing universe. (...)
Read the rest of ‘Mega-Earth’ And Doomed Planets Top Today’s Exoplanet Finds (966 words)
© Elizabeth Howell for Universe Today, 2014. | Permalink | No comment |
Post tags: AAS, American Astronomical Society
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 A coal-fired plant in Glenrock, Wyoming. Image Credit: Greg Goebel At the end of his first year in office, President Obama made a bold promise: the United States would cut its greenhouse gas emissions substantially by 2020. Unfortunately it was a risky pledge that hinged on Congress. After President Obama was unable to get his major climate change proposal through Congress in his first term, it seemed as though his pledge to the rest of the World and planet Earth might disintegrate into thin air. But today, President Obama announced plans to bypass Congress entirely. By using his executive authority under the Clean Air Act, he proposed an Environmental Protection Agency regulation to cut carbon pollution from the nation's power plants 30 percent from 2005 levels by 2030. It's one of the strongest actions ever taken by the United States government to fight climate change.(...)
Read the rest of President Obama Unveils a New Carbon Plan (429 words)
© Shannon Hall for Universe Today, 2014. | Permalink | 7 comments |
Post tags: Clean Air Act, Climate Change, climate policy
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 Sunset-lit clouds swirl over Perth on May 31, 2014 (Reid Wiseman/NASA) On May 28 the crew of Expedition 40/41 launched from Baikonur Cosmodrome, their Soyuz TMA-13M arriving at the International Space Station about eight and a half hours later. And it didn’t take much time for the newly-arrived NASA astronaut Reid Wiseman to start taking photos from his new vantage point in orbit and sharing them on Twitter for the rest of us to enjoy! Here are some of Reid’s latest images from the edge of space, looking down on the beautiful blue world we call home.
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Read the rest of Stunning Snapshots from Space Courtesy of Reid Wiseman (177 words)
© Jason Major for Universe Today, 2014. | Permalink | No comment |
Post tags: Earth, expedition 40, ISS, orbit, reid wiseman, space, Twitter
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 A series of All-Sky (fish eye) images showing the plasma trail left by a fireball, which extends 92 degrees across the northern half of the sky. These images are 5 second snapshots captured at 37.8 MHz with the LWA1 radio telescope. The bright steady sources (Cygnus A, Cassiopeia A, the galactic plane, etc) have been removed using image subtraction. Image Credit: Gregory Taylor (University of New Mexico) At any given moment, it seems, the sky is sizzling with celestial phenomena waiting to be stumbled upon. New research using the Long Wavelength Array (LWA), a collection of radio dishes in New Mexico, found quite the surprise. Fireballs — those brilliant meteors that leave behind glowing streaks in the night sky — unexpectedly emit a low radio frequency, hinting at new unexplored physics within these meteor streaks.
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Read the rest of Surprise! Fireballs Light up the Radio Sky, Hinting at Unexplored Physics (509 words)
© Shannon Hall for Universe Today, 2014. | Permalink | 2 comments |
Post tags: meteors, Radio
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 Near Earth asteroid 2014 KH39, discovered on May 24, 2014, is the faint ‘star’ in the crosshairs in this photo made on May 31. The telescope tracked the asteroid, so the stars are trailed. A satellite trail is visible too. Credit: Gianluca Masi Got any plans Tuesday? Good. Keep them but know this. That day around 3 p.m. CDT (20:00 UT) asteroid 2014 KH39 will silently zip by Earth at a distance of just 272,460 miles (438,480 km) or 1.14 LDs (lunar distance). Close as flybys go but not quite a record breaker. The hefty space rock will buzz across the constellation Cepheus at nearly 25,000 mph (11 km/sec) near the Little Dipper at the time. Observers in central Europe and Africa will have dark skies for the event, however at magnitude +17 the asteroid will be too faint to spot in amateur telescopes. No worries. The Virtual Telescope Project, run by astrophysicist Gianluca Masi, will be up and running with real-time images and live commentary during the flyby. The webcast begins at 2:45 p.m. CDT June 3.(...)
Read the rest of Asteroid 2014 KH39 Zips Just 1.1 LD from Earth – Watch it LIVE June 3 (616 words)
© Bob King for Universe Today, 2014. | Permalink | One comment |
Post tags: 2014 HQ124, 2014 KH39, asteroid, NEA, neo, PHA
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 Lockheed Martin and NASA engineers are installing the largest heat shield ever built onto the Orion EFT-1 spacecraft's crew module at the Kennedy Space Center. Liftoff is slated for late Fall 2014. Credit: Lockheed Martin
Story updated In a key milestone, technicians at the Kennedy Space Center (KSC) in Florida have attached the world's largest heat shield to a pathfinding version of NASA's Orion crew capsule edging ever closer to its inaugural unmanned test flight later this Fall on a crucial mission dubbed Exploration Flight Test-1 (EFT-1). One of the primary goals of NASA's eagerly anticipated Orion EFT-1 uncrewed test flight is to test the efficacy of the heat shield in protecting the vehicle – and future human astronauts – from excruciating temperatures reaching 4000 degrees Fahrenheit (2200 C) during scorching re-entry heating.(...)
Read the rest of World Largest Heat Shield Attached to NASA’s Orion Crew Capsule for Crucial Fall 2014 Test Flight (1,121 words)
© Ken Kremer for Universe Today, 2014. | Permalink | 8 comments |
Post tags: cape canaveral, Deep space exploration, Delta 4 Heavy, heat shield, ISS, kennedy space center, Lockheed Martin, NASA, Orion Crew Vehicle, Orion EFT-1
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