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1 Researchers pinpoint origin of photons in mysterious gamma-ray bursts
2 A possible explanation for one of Saturn's moons having an underground ocean
3 Giant molecular outflow detected from the quasar PDS 456
4 Journey to the Big Bang through the lithium of a Milky Way star
5 More delays for Boeing's new space capsule for astronauts
6 Dark Energy Instrument's lenses see the night sky for the first time
7 Making a dent: Japan probe prepares to blast asteroid
8 ESA boosts startup to the Moon
9 AstroSAT observations reveal quasi-periodic oscillations in the X-ray binary GX 5-1
10 Russian supply ship reaches space station in record time (Update)
11 Video: A successful mission starts with nutrition
12 See the moon photobomb saturn in an amazing capture
13 Life on Mars?
14 And the blobs just keep on coming
15 Almost 500 people in southeastern US report meteor
16 Heavy metal planet fragment survives destruction from dead star
17 Curiosity captured two solar eclipses on Mars
18 Japan spacecraft drops explosive on asteroid to make crater
19 BepiColombo is ready for its long cruise
20 How a startup plans to clean up space
21 A decade-long quest to build an ecosystem in a room
22 Gamma-ray blazars in the sky
23 Self-driving spacecraft set for planetary defense expedition
24 Gravitational waves helping to expose black holes, dark matter and theoretical particles
25 Unexpected rain on sun links two solar mysteries
26 Debris from anti-satellite test no danger to ISS, India says
27 NASA researchers catalogue all microbes and fungi on the International Space Station
28 Music for space
29 Martian soil detox could lead to new medicines
30 Scientists predict sun's activity will be weak during next solar cycle
31 Video: Staying fit in space
32 Image: Mars dust devil detail
33 Iron volcanoes may have erupted on metal asteroids
34 Grapes on Mars? Georgia winemakers aiming high
35 Black holes: picturing the heart of darkness
36 Jupiter's atmosphere heats up under solar wind
37 Astronomers find evidence of a planet with a mass almost 13 times that of Jupiter
38 U.S. wants a crewed mission to the moon in five years--but can and should that be done?
39 Gas dynamics in a nearby protostellar binary system studied with ALMA
40 What is a black hole? Searching for what can't be seen
41 NASA launches two rockets studying auroras
42 Life could be evolving right now on nearest exoplanets
43 Young entrepreneur aims to send 3-D-printed rockets to space
44 New model accurately predicts harmful space weather
45 Scientists set to reveal first true image of black hole
46 NASA demos CubeSat, laser communications capability
47 Are brown dwarfs failed stars or super-planets?
48 Astronomers deliver first photo of black hole
49 SpaceX's Falcon Heavy rocket poised for first commercial launch
50 Battle for space more stealth than Star Wars
51 Ridding space of old satellites and debris
52 Seeing is believing: Four lessons of the new black hole image
53 No nausea for Beth Moses, Virgin's space tourist trainer
54 Working together as a 'virtual telescope,' observatories around the world produce first direct images of a black hole
55 Martian methane mystery: First results from the ExoMars Trace Gas Orbiter
56 Greenland Telescope to image black holes by moving onto the Greenland ice sheet
57 Observing the invisible: The long journey to the first image of a black hole
58 MAXI J1957+032 contains a neutron star, Swift observations suggest
59 First black hole photo confirms Einstein's theory of relativity
60 Exoplanet detectors
61 Public invited to help name the largest unnamed world in the solar system
62 Researchers observe formation of a magnetar 6.5 billion light years away
63 To get to the Moon in 2024, the rocket is just NASA's first headache
64 Israel set to land spacecraft on the moon in first
65 Scientist superstar Katie Bouman designed algorithm for black hole image
66 Astronaut has no lingering, major epigenetic differences from earthbound twin brother
67 Israeli spacecraft crashes during moon landing: mission control (Update)
68 SpaceX launches mega rocket, lands all three boosters
69 Israeli spacecraft crashes in attempt to land on moon
70 Trump's Space Force collides with skeptical Congress
71 Doing up the deep dish
72 NASA's 'Twins Study,' landmark research for an eventual Mars mission
73 Curiosity tastes first sample in 'clay-bearing unit'
74 10 things you should know about planetary defense
75 Tests for the InSight 'Mole'
76 Rocket break-up provides rare chance to test debris formation
77 Hubble peers at cosmic blue bauble
78 Israeli team assesses what went wrong with lunar landing
79 DIY gravitational waves with 'BlackHoles@Home'
80 Video: The making of the largest 3-D map of the universe
81 Breezing through the space environment of Barnard's Star b
82 Astronomers investigate jet kinematics of the blazar 4C+21.35
83 Beresheet: First privately-funded mission crashes on moon, but its significance is huge
84 Image: the Egg Nebula
85 Asteroids help scientists measure distant stars
86 Tiny fragment of a comet found inside a meteorite
87 Meteoroid strikes eject precious water from moon
88 TESS finds its first Earth-sized planet
89 Astronomers take first, high-resolution look at huge star-forming region of Milky Way
90 Israeli nonprofit vows new moon mission after 1st crashes
91 Cassini reveals surprises with Titan's lakes
92 Variations in the 'fogginess' of the universe identify a milestone in cosmic history
93 NEOWISE celebrates five years of asteroid data
94 Indian scientists make deepest radio images of the sun
95 Mysterious star 21 Comae reinvestigated with MOST satellite
96 Astronomers discover third planet in the Kepler-47 circumbinary system
97 Former NASA astronaut Owen Garriott dies
98 How to defend the Earth from asteroids
99 CubeSats prove their worth for scientific missions
100 SpaceX's recovered core booster damaged in rough seas
101 A small step for China: Mars base for teens opens in desert
102 Powerful particles and tugging tides may affect extraterrestrial life
103 NASA wants to send a low-cost mission to explore Neptune's moon Triton
104 Evidence of another possible planet orbiting Proxima Centauri
105 Image: Partial Gravity Simulator practice
106 Possible evidence of an extrasolar object striking the Earth in 2014
107 Explosion on Jupiter-sized star 10 times more powerful than ever seen on the sun
108 Image: Mirror array for LSS
109 Drop test proves technologies for reusable microlauncher
110 US astronaut to spend 11 months in space, set female record