1. Space News Update - April 22, 2013 - In the News Story 1: Story 1: Orbital Sciences launches Antares rocket on successful test flight Story 2: Story 2: Hubble Sees a Horsehead of a Different Color Story 3: Story 3: NASA sees 3 coronal mass ejections Departments The Night Sky ISS Sighting Opportunities NASA-TV Highlights Space Calendar Food for Thought Space Image of the Week

2. Orbital Sciences launches Antares rocket on successful test flight >

3. Hubble Sees a Horsehead of a Different Color

4. NASA sees 3 coronal mass ejections

5. The Night Sky Monday, April 22 · The two brightest points in the sky after dusk this week are Jupiter in the west and Sirius in the southwest. Midway between them is Orion. This lineup is lying down lower every week now. How late into the spring can you keep it in view? Tuesday, April 23 · There's a bright gibbous Moon tonight. If you're out with a telescope, you'll notice that the Moon is creeping toward a star: Chi Virginis, magnitude 4.7. The Moon's invisible dark limb, just beyond the terminator, will occult the star for most of North America except the Northeast and north of the Great Lakes (Denver, 9:07 p.m. MDT) Wednesday, April 24 · Look close to the nearly full Moon for Spica tonight. The Moon occults Spica for parts of Central America, South America, and southern Africa;map and timetables.map and timetables Thursday, April 25 · Full Moon. A very slight partial lunar eclipse is visible from Europe, Africa, Australia, and most of Asia, centered on 20:07 April 25th Universal Time. Details.Details · The "star" near the Moon all night is Saturn, just two days away from its own opposition. Friday, April 26 · Around the end of twilight this evening, the Moon rises below Saturn. With binoculars, look closer below Saturn for the wide double star Alpha 2 and Alpha 1 Librae, magnitudes 2.8 and 5.2, respectively.

6. ISS Sighting Opportunities Sighting information for other cities can be found at NASA’s Satellite Sighting InformationSatellite Sighting Information For Denver: SATELLITELOCALDURATION MAX ELEV APPROACHDEPARTURE DATE/TIME(MIN)(DEG)(DEG-DIR) ISSMon Apr 22/08:31 PM52614 above NNW12 above E ISSMon Apr 22/10:08 PM13814 above WNW24 above W ISSTue Apr 23/09:18 PM27628 above WNW60 above SSE ISSWed Apr 24/08:27 PM45627 above NNW12 above ESE ISSWed Apr 24/10:03 PM11410 above W13 above WSW ISSThu Apr 25/09:13 PM32618 above W19 above S ISSFri Apr 26/08:23 PM45238 above W10 above SE

7. NASA-TV Highlights Watch NASA TV on the Net by going to NASA website.NASA website April 24, Wednesday 6 a.m. - ISS Progress 51 Launch Coverage from the Baikonur Cosmodrome, Kazakhstan (Launch scheduled at 6:12 a.m. EDT) - JSC via Baikonur (All Channels) April 25, Thursday 11:35 a.m. - ISS Expedition 35 In-Flight Event with WCSH-TV, Portland, ME and Sirius XM’s “Midday Briefing” Program - JSC (All Channels) 12:05 p.m. - ISS Mission Control On-Console Interview with the Digital Learning Network - JSC (All Channels) 2 - 7 p.m. - Live Coverage of FIRST Robotic Finals from St. Louis Missouri - HQ (Public and Education Channels) April 26, Friday 7:45 a.m. - ISS Progress 51 Docking Coverage (Docking scheduled at 8:27 a.m. EDT) - JSC (All Channels) 9 a.m. - 6 p.m. - NASA’s Great Moon Buggy Race - MSFC (Public Channel) 9:30 a.m. - 7:15 p.m. - Live Coverage of FIRST Robotic Finals from St. Louis Missouri - HQ (Education Channel) 11 a.m. - ISS Live - JSC (Media Channel)

8. Space Calendar Apr 22 - [Apr 15] Earth DayEarth Day Apr 22 - Lyrids Meteor Shower PeakLyrids Meteor Shower Apr 22 - [Apr 17] Comet P/2013 G4 (PANSTARRS) Closest Approach To Earth (1.718 AU)Comet P/2013 G4 (PANSTARRS)Closest Approach To Earth Apr 22 - Comet 136P/Mueller At Opposition (4.158 AU)Comet 136P/MuellerAt Opposition Apr 22 - Asteroid 2009 SQ104 Near-Earth Flyby (0.071 AU)Asteroid 2009 SQ104Near-Earth Flyby Apr 22 - Asteroid 2010 CE55 Near-Earth Flyby (0.083 AU)Asteroid 2010 CE55Near-Earth Flyby Apr 22 - Asteroid 2012 XF55 Near-Earth Flyby (0.084 AU)Asteroid 2012 XF55Near-Earth Flyby Apr 22 - Asteroid 65803 Didymos Closest Approach To Earth (1.272 AU)Asteroid 65803 DidymosClosest Approach To Earth Apr 23 - Comet C/2011 R1 (McNaught) At Opposition (2.017 AU)Comet C/2011 R1 (McNaught)At Opposition Apr 23 - Comet P/2011 C2 (Gibbs) At Opposition (4.674 AU)Comet P/2011 C2 (Gibbs)At Opposition Apr 23 - Asteroid 2830 Greenwich Closest Approach To Earth (0.929 AU)Asteroid 2830 Greenwich Apr 23 - Asteroid 3651 Friedman Closest Approach To Earth (1.136 AU)Asteroid 3651 Friedman Apr 23 - Asteroid 2169 Taiwan Closest Approach To Earth (1.892 AU)Asteroid 2169 Taiwan Apr 23 - Asteroid 253 Mathilde Closest Approach To Earth (1.965 AU)Asteroid 253 MathildeClosest Approach To Earth Apr 23 - Kuiper Belt Object 2010 EK139 At Opposition (37.227 AU)Kuiper Belt Object 2010 EK139At Opposition Apr 24 - [Apr 17] Progress M-19M Soyuz U Launch (International Space Station 51P)Progress M-19MSoyuz U Launch Apr 24 - [Apr 17] Comet P/2013 G4 (PANSTARRS) At Opposition (1.718 AU)Comet P/2013 G4 (PANSTARRS)At Opposition Apr 24 - Comet 29P/Schwassmann-Wachmann At Opposition (5.231 AU)Comet 29P/Schwassmann-WachmannAt Opposition Apr 24 - Asteroid 2952 Lilliputia Closest Approach To Earth (1.699 AU)Asteroid 2952 Lilliputia Apr 24 - Asteroid 16035 Sasandford Closest Approach To Earth (1.746 AU)Asteroid 16035 Sasandford Apr 24 - Asteroid 246913 Slocum Closest Approach To Earth (2.100 AU)Asteroid 246913 Slocum Apr 24 - Workshop: From Outer Space to Mining, Cleveland, United KingdomWorkshop: From Outer Space to Mining Apr 25 - [Apr 18] Partial Lunar EclipsePartial Lunar Eclipse Apr 25 - [Apr 22] Asteroid 2013 GK69 Near-Earth Flyby (0.035 AU)Asteroid 2013 GK69Near-Earth Flyby Apr 25 - Lecture: Project Orion Nuclear Propulsion, London, United KingdomLecture: Project Orion Nuclear Propulsion Apr 26 - Cosmos-Uragan M Soyuz-2-1b Fregat LaunchCosmos-Uragan M Apr 26 - Comet 193P/LINEAR-NEAT At Opposition (2.976 AU)Comet 193P/LINEAR-NEATAt Opposition Apr 26 - Comet 29P/Schwassmann-Wachmann Closest Approach To Earth (5.230 AU)Comet 29P/Schwassmann-WachmannClosest Approach To Earth Apr 26 - Asteroid 2612 Kathryn Occults HIP 34608 (6.4 Magnitude Star)Asteroid 2612 Kathryn Occults HIP 34608 Apr 26 - [Apr 22] Asteroid 2013 GE55 Near-Earth Flyby (0.069 AU)Asteroid 2013 GE55Near-Earth Flyby Apr 26 - Asteroid 2575 Bulgaria Closest Approach To Earth (1.008 AU)Asteroid 2575 Bulgaria Apr 26 - Asteroid 3153 Lincoln Closest Approach To Earth (1.727 AU)Asteroid 3153 Lincoln Apr 26 - Asteroid 16626 Thumper Closest Approach To Earth (1.925 AU)Asteroid 16626 Thumper Apr 26 - 15th Anniversary (1998), Cassini, Venus FlybyCassini Apr 26 - 165th Anniversary (1848), Andrew Graham's Discovery of Asteroid 9 MetisAndrew Graham'sAsteroid 9 Metis JPL Space Calendar

9. Food for Thought Earth Day! Astronaut Celebrates Earth from Space

10. Space Image of the Week Image Credit: Dennis Simmons/SpaceWeather