1. Space News Update - April 12, 2019 - In the News Departments Story 1:
Black Hole Image Makes History; NASA Telescopes Coordinated Observations
Story 2:
Curiosity Tastes First Sample in 'Clay-Bearing Unit'
Story 3:
Pinpointing the Origin of Photons in Mysterious Gamma-ray Bursts
Departments
The Night Sky
ISS Sighting Opportunities
NASA-TV Highlights
Space Calendar
Food for Thought
Space Image of the Week

2. Black Hole Image Makes History; NASA Telescopes Coordinated Observations
In this computer graphic, NASA's Voyager 1 probe, moving toward upper left, nears the edge of the sun's influence, flying through a region of space dominated by a "magnetic highway" that helps mediate the flow of particles into and out of the solar system. The region includes particles from the sun's southern hemisphere that have been forced northward by the pressure of the interstellar wind. Voyager 1 is expected to cross the boundary into interstellar space sometime within the next few years if not sooner. (Credit: NASA)

3. Curiosity Tastes First Sample in 'Clay-Bearing Unit'

4. Pinpointing the Origin of Photons in Mysterious Gamma-ray Bursts

5. The Night Sky Sky & Telescope Friday, April 12
• First-quarter Moon (exactly so at 3:06 p.m. EDT). Early this evening, the Moon shines high in the southwest with Pollux and Castor to its upper right and brighter Procyon lower left of it, as shown here.
Saturday, April 13
• At this time of year, the two Dog Stars stand vertically aligned around the end of twilight. Look southwest. Far under the Moon this evening is Procyon in Canis Minor. Brilliant Sirius, in Canis Major, is a similar distance below Procyon.
Later in the evening the arrangement moves lower and rotates a bit clockwise, as seen here. The Dog Stars are following Orion down toward making their seasonal exits in the southwest.
• Use binoculars tonight to look for M44, the scattery Beehive Star Cluster in Cancer, roughly 3° to the right of the glary Moon (as seen from the longitudes of North America).
Sunday, April 14
• The gibbous Moon shines upper right of Regulus this evening.
• The huge, bright Winter Hexagon still fills the sky to the southwest and west at the end of twilight. Start with brilliant Sirius in the southwest, the Hexagon's lower left corner. High above Sirius is Procyon. From there look even higher for Pollux and Castor, rightward from Castor to Menkalinan and bright Capella, lower left from there to Aldebaran, lower left to Rigel way down at the bottom of Orion, and back to Sirius.
Monday, April 15
• Arcturus shines brightly in the east these evenings. The Big Dipper, very high in the northeast, points its curving handle lower-right toward it.
Arcturus forms the pointy end of a long, narrow kite asterism formed by the brightest stars of Bootes, the Cowherd. The kite is currently lying on its side to Arcturus's left. The head of the kite, at the far left, is bent slightly upward. The kite is 23° long, about two fists at arm's length.
Tuesday, April 16
• As Arcturus climbs the eastern sky these evenings, equally bright Capella is descending high in the northwest. They stand at exactly the same height above your horizon at some moment between about 9 and 10 p.m. daylight-saving time, depending mostly on how far east or west you live in your time zone.
How accurately can you time this event for your location? Like everything constellation-related, it happens 4 minutes earlier each night.

6. ISS Sighting Opportunities
ISS For Denver:
No sighting for Denver
Sighting information for other cities can be found at NASA’s Satellite Sighting Information

7. NASA-TV Highlights (all times Eastern Time Zone)
April 13, Saturday 8 a.m. – Simulcast of the NASA Rover Challenge from the U.S. Space and Rocket Center - Huntsville, Alabama (Public Channel) 9 p.m. – Replay of SpaceCast Weekly (All Channels) 10 p.m. – Replay of Administrator Jim Bridenstine's Keynote at the Space Symposium (All Channels)
April 14, Sunday 8 a.m., 1 p.m., 7 p.m. – Replay of SpaceCast Weekly (All Channels) 9 a.m., 2 p.m., 8 p.m. – Replay of Administrator Jim Bridenstine's Keynote at the Space Symposium (All Channels)
April 15, Monday 1:40 p.m. – International Space Station In-Flight Event with InStyle Magazine and NASA astronauts Anne McClain and Christina Koch (All Channels)
Watch NASA TV online by going to the NASA website

8. Space Calendar Oct 10 - [Oct 08Near-Earth Flyby (0.029 AU)
Apr 12 -[Apr 05] International Day of Human Space Flight
Apr 12 -[Apr 05] Yuri's Night: World Space Party
Apr 12 - Comet P/2015 X1 (PANSTARRS) At Opposition (4.160 AU)
Apr 12 -[Apr 10] Apollo Asteroid 2019 GC4 Near-Earth Flyby (0.013 AU)
Apr 12 -[Apr 05] Apollo Asteroid 2019 FB3 Near-Earth Flyby (0.030 AU)
Apr 12 -[Apr 06] Apollo Asteroid 2019 GQ1 Near-Earth Flyby (0.034 AU)
Apr 12 -[Apr 10] Apollo Asteroid 2019 GL4 Near-Earth Flyby (0.037 AU)
Apr 12 - Asteroid Hannover Closest Approach To Earth (1.953 AU)
Apr 12 - Asteroid Neilpeart Closest Approach To Earth (2.185 AU)
Apr 12 - Amor Asteroid Konnohmaru Closest Approach To Earth (3.099 AU)
Apr th Anniversary (1849), Annibale de Gasparis' Discovery of Asteroid 10 Hygiea
Apr 13 - Comet C/2014 C1 (TOTAS) Perihelion (1.684 AU)
Apr 13 - Comet 103P/Hartley At Opposition (4.239 AU)
Apr 13 -[Apr 06] Apollo Asteroid 2019 GN Near-Earth Flyby (0.004 AU)
Apr 13 -[Apr 10] Apollo Asteroid 2019 GO4 Near-Earth Flyby (0.013 AU)
Apr 13 -[Apr 10] Apollo Asteroid 2019 GN4 Near-Earth Flyby (0.019 AU)
Apr 13 - Apollo Asteroid 2019 FO1 Near-Earth Flyby (0.037 AU)
Apr 13 - Amor Asteroid 2019 FH1 Near-Earth Flyby (0.046 AU)
Apr 13 - Asteroid 6000 United Nations Closest Approach To Earth (2.084 AU)
Apr  American Physical Society (APS) Meeting, Denver, Colorado
Apr 14 - Apollo Asteroid 2016 FW13 Near-Earth Flyby (0.073 AU)
Apr 14 - Asteroid Fermilab Closest Approach To Earth (2.612 AU)
Apr 14 - Asteroid 7359 Messier Closest Approach To Earth (2.623 AU)
Apr 14 - Christiaan Huygens' 390th Birthday (1629)
Apr 15 - Comet 49P/Arend-Rigaux At Opposition (2.014 AU)
Apr 15 - Comet C/2018 F4 (PANSTARRS) At Opposition (3.316 AU)
Apr 15 - Comet 61P/Shajn-Schaldach At Opposition (4.245 AU)
Apr 15 - Comet C/2017 F2 (PANSTARRS) Closest Approach To Earth (6.675 AU)
Apr 15 - Asteroid 8861 Jenskandler Occults HIP 81724 (4.5 Magnitude Star)
Apr 15 - Asteroid Winnecke Closest Approach To Earth (1.371 AU)
Apr 15 - Asteroid 4149 Harrison Closest Approach To Earth (1.387 AU)
Apr 15 - Asteroid Parsec Closest Approach To Earth (1.435 AU)
Apr 15 - Asteroid Krakow Closest Approach To Earth (2.050 AU)
Apr 15 - Johannes Stark's 145th Birthday (1874)
Apr 16 - Asteroid 1584 Fuji Closest Approach To Earth (1.390 AU)
Apr 16 - Asteroid Christy Closest Approach To Earth (1.553 AU)
Apr 16 - Asteroid 2023 Asaph Closest Approach To Earth (2.586 AU)
Apr 16 - Asteroid 3693 Barringer Closest Approach To Earth (2.731 AU)
Apr 16 - Dwarf Planet Haumea At Opposition ( AU)
JPL Space Calendar

9. NASA’s Landmark Twins Study Reveals Resilience of Human Body in Space
Food for Thought
NASA’s Landmark Twins Study Reveals Resilience of Human Body in Space

10. Moon Occults Saturn Image Credit & Copyright: Cory Schmitz
Space Image of the Week
Moon Occults Saturn  Image Credit & Copyright: Cory Schmitz