1. Space News Update - April 11, 2014 - In the News Story 1: Story 1: Scientists reconstruct ancient impact that dwarfs dinosaur-extinction blast Story 2: Story 2: NASA's Hubble Extends Stellar Tape Measure 10 Times Farther Into Space Story 3: Story 3: European Satellite Dodged Space Debris Hours After Reaching Orbit Departments The Night Sky ISS Sighting Opportunities Space Calendar NASA-TV Highlights Food for Thought Space Image of the Week

2. Scientists reconstruct ancient impact that dwarfs dinosaur-extinction blast

3. NASA's Hubble Extends Stellar Tape Measure 10 Times Farther Into Space

4. European Satellite Dodged Space Debris Hours After Reaching Orbit

5. The Night Sky Sky & Telescope Friday, April 11 The waxing gibbous Moon shines under Leo tonight. Leo is where you get if you follow the pointer stars of the Big Dipper far enough backward. Saturday, April 12 This evening, look far lower left of the waxing gibbous Moon for fiery, glary Mars. By about midnight they're lined up horizontally in the south. Sunday, April 13 Vesta, the brightest asteroid, is at opposition. Ceres, the biggest asteroid, is just 2½° from Vesta and only 2 days from opposition. They're in Virgo, easy in binoculars at magnitudes 5.8 and 7.0, respectively. Use our finder chart for Ceres and Vesta. Monday, April 14 Total lunar eclipse late tonight for the Americas! See April's Total Eclipse of the Moon with map and timetable, also in the April Sky & Telescope, page 60. Meanwhile Mars is shining near the Moon, and Mars is closest to Earth tonight. And Spica is much closer to the Moon (for the Americas). Tuesday, April 15 After dark, look east for the lineup of Mars, Spica, and the just-past-full Moon, in that order from top down.

6. ISS Sighting Opportunities Sighting information for other cities can be found at NASA’s Satellite Sighting InformationSatellite Sighting Information ISS For Denver: DateVisibleMax HeightAppearsDisappears Fri Apr 11, 8:13 PM3 min21°21 above NNW10 above NNE Fri Apr 11, 9:50 PM2 min10°10 above NNW10 above NNE Sat Apr 12, 9:01 PM2 min12°11 above NNW10 above NNE Sat Apr 12, 10:38 PM< 1 min10°10 above NNW Sun Apr 13, 8:12 PM2 min13°13 above NNW10 above NNE Sun Apr 13, 9:50 PM2 min11°10 above NNW11 above NNE Mon Apr 14, 9:02 PM2 min10°10 above NNW10 above NNE Mon Apr 14, 10:38 PM< 1 min12°12 above NNW Tue Apr 15, 8:13 PM2 min11°10 above NNW10 above N Tue Apr 15, 9:50 PM2 min15°11 above NNW15 above NNE

7. NASA-TV Highlights (all times Eastern Daylight Time) April 11, Friday 8:15 a.m. - 5 p.m. - NASA’s Human Exploration Rover Challenge - MSFC (NTV-2) April 12, Saturday 8:15 a.m. - 5 p.m. - NASA’s Human Exploration Rover Challenge - MSFC (NTV-1, NTV-2) April 13, Sunday 9 a.m. - SpaceX-3/Dragon Prelaunch News Conference - KSC (All Channels) 10 a.m. - SpaceX-3/Dragon Science and Technology Cargo News Conference - KSC (All Channels) April 14, Monday 3:45 p.m. - Coverage of the Launch of the SpaceX/Dragon Cargo Craft to the ISS (Launch scheduled at 4:58 p.m. EDT) - KSC (All Channels) April 15, Tuesday 1 p.m. - Rotary National Award for Space Achievement Gala (held Friday April 11, 2014 in Houston, Texas) - - JSC (All Channels) 4 p.m. - Replay of Rotary National Award for Space Achievement Gala (held Friday April 11, 2014 in Houston, Texas) -- HQ (All Channels) Watch NASA TV online by going to the NASA websiteNASA website

8. Space Calendar JPL Space Calendar Mar 28 - [Mar 22] Asteroid 2014 FF Near-Earth Flyby (0.040 AU)Asteroid 2014 FFNear-Earth Flyby Mar 28 - Asteroid 11365 NASA Closest Approach To Earth (1.404 AU)Asteroid 11365 NASA Mar 28 - Asteroid 4659 Roddenberry Closest Approach To Earth (1.870 AU)Asteroid 4659 Roddenberry Mar 28 - Asteroid 2099 Opik Closest Approach To Earth (2.142 AU)Asteroid 2099 Opik Mar 28 - Asteroid 15417 Babylon Closest Approach To Earth (2.899 AU)Asteroid 15417 Babylon Mar 28 - Asteroid Grand Challenge Virtual SeminarAsteroid Grand Challenge Virtual Seminar Mar 29 - Asteroid 38086 Beowolf Closest Approach To Earth (1.117 AU)Asteroid 38086 BeowolfClosest Approach To Earth Mar 29 - Asteroid 10866 Peru Closest Approach To Earth (1.136 AU)Asteroid 10866 Peru Mar 29 - Asteroid 1430 Somalia Closest Approach To Earth (1.872 AU)Asteroid 1430 Somalia Mar 29 - Asteroid 10799 Yucatan Closest Approach To Earth (1.942 AU)Asteroid 10799 Yucatan Mar 29 - Asteroid 17768 Tigerlily Closest Approach To Earth (2.124 AU)Asteroid 17768 Tigerlily Mar 29 - Asteroid 2866 Hardy Closest Approach To Earth (2.448 AU)Asteroid 2866 Hardy Mar 29 - Asteroid 588 Achilles Closest Approach To Earth (4.257 AU)Asteroid 588 Achilles Mar 29 - 40th Anniversary (1974), Mariner 10, 1st Mercury FlybyMariner 10 Mar 30 - European Summer Time - Set Clock Ahead 1 Hour (European Union)European Summer Time Mar 30 - BelarusSat 1 CZ-3B/E LaunchBelarusSat 1 Mar 30 - Comet 46P/Wirtanen Closest Approach To Earth (2.022 AU)Comet 46P/WirtanenClosest Approach To Earth Mar 30 - Comet 138P/Shoemaker-Levy At Opposition (3.602 AU)Comet 138P/Shoemaker-LevyAt Opposition Mar 30 - Asteroid 2012 EA Near-Earth Flyby (0.036 AU)Asteroid 2012 EANear-Earth Flyby Mar 30 - Asteroid 2009 FW25 Near-Earth Flyby (0.071 AU)Asteroid 2009 FW25Near-Earth Flyby Mar 30 - Asteroid 9000 Hal Closest Approach To Earth (1.429 AU)Asteroid 9000 Hal Mar 30 - Asteroid 469 Argentina Closest Approach To Earth (1.689 AU)Asteroid 469 Argentina Mar 31 - Cartosat 2C/IMS 1B/NEMO-AM/ SRE-2/ CAN-X4/CAN-X5 PSLV LaunchCartosat 2CSRE-2CAN-X4/CAN-X5 Mar 31 - Comet 135P/Shoemaker-Levy Closest Approach To Earth (1.948 AU)Comet 135P/Shoemaker-LevyClosest Approach To Earth Mar 31 - Come 6P/d'Arrest At Opposition (2.389 AU)Come 6P/d'ArrestAt Opposition Mar 31 - Comet C/2013 J3 (McNaught) At Opposition (4.270 AU)Comet C/2013 J3 (McNaught)At Opposition Mar 31 - Asteroid 2362 Mark Twain Closest Approach To Earth (1.613 AU)Asteroid 2362 Mark Twain Mar 31 - Asteroid 2022 WestiClosest Approach To Earth (1.979 AU)Asteroid 2022 West Mar 31 - Asteroid 30826 Coulomb Closest Approach To Earth (2.548 AU)Asteroid 30826 Coulomb Mar 31 - Asteroid 5661 Hildebrand Closest Approach To Earth (3.479 AU)Asteroid 5661 Hildebrand Apr 01 - Asteroid 3902 Yoritomo Occults HIP 26571 (6.5 Magnitude Star)Asteroid 3902 Yoritomo Occults HIP 26571 Apr 01 - Asteroid 2009 SA100 Near-Earth Flyby (0.044 AU)Asteroid 2009 SA100Near-Earth Flyby Apr 01 - Asteroid 2010 GD35 Near-Earth Flyby (0.049 AU)Asteroid 2010 GD35Near-Earth Flyby Apr 01 - Asteroid 2009 FD Near-Earth Flyby (0.101 AU)Asteroid 2009 FDNear-Earth Flyby Apr 01 - Asteroid 3297 Hong Kong Closest Approach To Earth (2.584 AU)Asteroid 3297 Hong Kong

9. Food for Thought Did a Lake Once Cover Spirit Rover’s Landing Site On Mars?

10. Space Image of the Week Supernova Sweeps Away Rubbish In New Composite Image