Today on SPACE.com --- Friday, June 2, 2006 -- http://www.space.com/
/------------------------------------- In today's issue: Science/Astronomy: * Giant Crater Found: Tied to Worst Mass Extinction Ever * Celestial Triangles: Jupiter Mingles with the Stars * Of Faith and Facts: Is SETI a Religion? * Saturn's Moon Did Cosmic Flop * Landing Sites Debated for Next Mars Rover * Doorstep Astronomy: Stars and Planets Align * The Tricky Task of Aerobraking at Mars Spaceflight: * Nanotubes Might Not Have the Right Stuff * NASA Clears Foam Debris Issue for Next Shuttle Flight * Competition Heats Up for NASA's Space Cargo Contract * European ISS Laboratory Arrives at NASA Spaceport * Space Station Astronauts Rehearse Mission's First Spacewalk * Ariane 5 Rocket Launches Communications Satellite Pair * Russian Submarine Launches Russian Microsatellite * Dueling Drawing Boards: Sizing up the CEV Designs * NEW! Daily Space Trivia LiveScience.com * Reader Favorites * Great Inventions: Quiz Yourself * Visit Our Cool LiveScience Galleries * Top 10 Immortals * Video Collection * Amazing Images: Upload Your Cool Pictures Now! NEW! Cool Stuff: * Space Tourism: A Multimedia Special Report * Gallery: Spitzer's Infrared Views of the Cosmos * VIDEO: Figure the Odds of E.T.! * Visit Our Collection of Space Wallpapers * Vote: The Best of the Hubble Space Telescope * Amazing Images: Upload Yours Now and Even Buy a Poster! * New! Search for Your Next Hi-Tech Job Opportunity Now! Plus... * Uplink, SPACE.com TV and NightSky * Starry Night, TeamSETI ----------------------------------- Science/Astronomy: * Giant Crater Found: Tied to Worst Mass Extinction Ever http://www.space.com/scienceastronomy/060601_big_crater.html An apparent crater as big as Ohio has been found in Antarctica. Scientists think it was carved by a space rock that caused the greatest mass extinction on Earth, 250 million years ago. * Celestial Triangles: Jupiter Mingles with the Stars http://www.space.com/spacewatch/060602_night_sky.html We're less than three weeks away from the official start of summer in the Northern Hemisphere (8:30 a.m. EDT on June 21). And as darkness falls this week, the famous Summer Triangle can be found emerging into view low in the eastern sky. * Of Faith and Facts: Is SETI a Religion? http://www.space.com/searchforlife/seti_religion_060601.html Is SETIthe Search for Extraterrestrial Intelligencea religion? This is one of the topics that Jill Tarter, Director of the Center for SETI Research at the SETI Institute, and I discussed on "Are We Alone?", the SETI Institute's weekly radio program on Wednesday May 17. * Saturn's Moon Did Cosmic Flop http://www.space.com/scienceastronomy/060531_saturn_moon.html Saturn's moon Enceladus might have rolled over on its side sometime in the past, a suggestion that would account for a strange finding made by the Cassini spacecraft. * Landing Sites Debated for Next Mars Rover http://www.space.com/news/060531_msl_destination.html When NASA's next wheeled robotthe Mars Science Laboratoryrockets skyward in 2009, the mega-rover will carry the largest, most sophisticated array of science gear ever shot to the martian surface. * Doorstep Astronomy: Stars and Planets Align http://www.space.com/spacewatch/060530_sky_scenes.html Something remarkable is about to happen in the evening sky. Three planets and a star cluster are converging for a close encounter you won't want to miss. * The Tricky Task of Aerobraking at Mars http://www.space.com/scienceastronomy/060530_science_tuesday.html Round and round it goes, and where it ends up is a matter of aerobraking for the Mars Reconnaissance Orbiter, NASA's newest spacecraft to explore the red planet. * Surprising Activity from a Dead Star http://www.space.com/scienceastronomy/060529_compact_jets.html A distinctive feature of black holes is the discharge of narrow jets that shoot matter into space in a continuous stream near the speed of light. ----------------------------------- Spaceflight: * Nanotubes Might Not Have the Right Stuff http://www.space.com/businesstechnology/technovel_nanotubes_060602.html Scientists and science fiction fans alike have big plans for carbon nanotubes; it has been hoped that a cable made of carbon nanotubes would be strong enough to serve as a space elevator. However, recent calculations by Nicola Pugno of the Polytechnic of Turin, Italy, suggest that carbon nanotube cables will not work. * NASA Clears Foam Debris Issue for Next Shuttle Flight http://www.space.com/missionlaunches/060531_sts121_debris_rtf_updt.html Major changes to the space shuttle Discovery's external fuel tank do not pose an unacceptable risk to NASA's planned July 1 launch, though some concerns do remain, the space agency said Wednesday. * Competition Heats Up for NASA's Space Cargo Contract http://www.space.com/businesstechnology/060531_techwed_cots.html With NASA's shuttle fleet to retire and a looming gap before a new spaceship debuts, the stage is set for private firms hoping to offer commercial cargo and crew services to the International Space Station (ISS). * European ISS Laboratory Arrives at NASA Spaceport http://www.space.com/news/ft_060531_iss_columbus.html A European science laboratory will be delivered to a Kennedy Space Center processing facility today after a transoceanic trip aboard one of the largest cargo aircraft in the world. * Space Station Astronauts Rehearse Mission's First Spacewalk http://www.space.com/missionlaunches/060530_exp13_eva1prep.html Two astronauts aboard the International Space Station (ISS) are going through the motions of a spacewalk today in preparations for the real thing later this week. * Ariane 5 Rocket Launches Communications Satellite Pair http://www.space.com/missionlaunches/ap_060529_ariane5_launch.html A European space consortium rocket loaded with two satellites blasted off Saturday evening from a launch pad in South America, despite rainy conditions at liftoff. * Russian Submarine Launches Russian Microsatellite http://www.space.com/missionlaunches/sfn_060529_shtil_kompass2.html Using a Russian Navy strategic submarine and a converted ballistic missile, a small research satellite was launched into orbit Friday on a mission to aid in the potential development of earthquake forecasts from space. * Dueling Drawing Boards: Sizing up the CEV Designs http://www.space.com/businesstechnology/060526_cev_competition.html Leading aerospace contractors are eagerly awaiting NASA's multi-billion dollar decision on who'll build the space agency's follow-on to the space shuttle now set for retirement in 2010. * Space Station's Previous Crew Looks Back on Mission http://www.space.com/news/060525_exp12_lookback.html Veteran NASA astronaut Bill McArthur has no qualms about hanging up his spacesuit after his stint as commander of the International Space Station (ISS), but leaving the orbital laboratory behind last month was no easy task. ---------------------------------- LiveScience.com http://www.livescience.com/ * Reader Favorites http://www.livescience.com/readerfavorites/index.html Here are your favorite features. Return often to see what's hot! * Great Inventions: Quiz Yourself http://www.livescience.com/php/trivia/?quiz=inventions >From adhesives to zippers, see if you know who came up with what. * Visit Our Cool LiveScience Galleries http://www.livescience.com/php/multimedia/imagegallery/ Where Science comes to Life...Explore our incredible collection of science images! * Video Collection http://www.livescience.com/php/video/ Launch a multimedia journey with these cool science and adventure videos. * Top 10 Immortals http://www.livescience.com/humanbiology/top10_immortals.html The dream of living forever is an old one for humanity. From Tithonus to Dorian Gray and Highlander, LiveScience reviews some of our culture's most famous immortals. * Amazing Images: Upload Your Cool Pictures Now! http://www.livescience.com/amazingimages/ Upload your cool science images now. Get your own homepage, vote for your favorites and more! ---------------------------------- NEW! Cool Stuff: * Space Tourism: A Multimedia Special Report http://www.space.com/php/multimedia/earlyspacetourism/noad_launch.html Part One: Where Only A Few Folks Have Gone * Gallery: Spitzer's Infrared Views of the Cosmos http://www.space.com/php/multimedia/imagegallery/igviewer.php?imgid=3725&gid=272&index=0 Welcome to the world of infrared astronomy - - take an incredible journey through the cosmos! * VIDEO: Figure the Odds of E.T.! http://www.space.com/php/video/player.php?video_id=b050715_figuretheodds How many extra-terrestrial civilizations exist in our Galaxy? * Visit Our Collection of Space Wallpapers http://www.space.com/php/multimedia/downloads/wallpapers/ >From the highest quality space art to intergalactic photography, find an image >for your desktop every month of the year. * Vote: The Best of the Hubble Space Telescope http://www.space.com/bestimg/index.php?cat=hst Vote now for the best Hubble image of all time... * Amazing Images: Upload Yours Now and Even Buy a Poster! http://www.space.com/amazingimages/ Upload your cool science and space-themed images now. 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