NASA's Goddard Space Flight Center
5 Jun 2020, 11:30 UTC
Almost like snowflakes, the stars of the globular cluster NGC 6441 sparkle peacefully in the night sky, about 13,000 light-years from the Milky Way’s galactic center. Like snowflakes, the exact number of stars in such a cluster is difficult to discern. It is estimated that together the stars have 1.6 million times the mass of the Sun, making NGC 6441 one of the most massive and luminous globular clusters in the Milky Way.
Hubble Catches Cosmic Snowflakes
5 Jun 2020, 11:30 UTC
Almost like snowflakes, the stars of the globular cluster NGC 6441 sparkle peacefully in the night sky, about 13,000 light-years from the Milky Way’s galactic center. Like snowflakes, the exact number of stars in such a cluster is difficult to discern. It is estimated that together the stars have 1.6 million times the mass of the Sun, making NGC 6441 one of the most massive and luminous globular clusters in the Milky Way.
NASA's Goddard Space Flight Center
3 Jun 2020, 18:00 UTC
This view of sample site Osprey on asteroid Bennu is a mosaic of images collected by NASA’s OSIRIS-REx spacecraft on May 26. A total of 347 PolyCam images were stitched together and corrected to produce the mosaic, which shows the site at 0.2 inches (5 mm) per pixel at full size. The spacecraft took these images during an 820-foot (250-meter) reconnaissance pass over the site, which is the closest Osprey has been imaged. The pass was designed to provide high-resolution imagery to identify the best areas within the site to collect a sample.
OSIRIS-REx Swoops Over Sample Site Osprey
3 Jun 2020, 18:00 UTC
This view of sample site Osprey on asteroid Bennu is a mosaic of images collected by NASA’s OSIRIS-REx spacecraft on May 26. A total of 347 PolyCam images were stitched together and corrected to produce the mosaic, which shows the site at 0.2 inches (5 mm) per pixel at full size. The spacecraft took these images during an 820-foot (250-meter) reconnaissance pass over the site, which is the closest Osprey has been imaged. The pass was designed to provide high-resolution imagery to identify the best areas within the site to collect a sample.
MIT
2 Jun 2020, 18:59 UTC
Brown dwarfs are the middle child of astronomy, too big to be a planet yet not big enough to be a star. Like their stellar siblings, these objects form from the gravitational collapse of gas and dust. But rather than condensing into a star’s fiery hot nuclear core, brown dwarfs find a more zen-like equilibrium, somehow reaching a stable, milder state compared to fusion-powered stars.
Citizen scientists spot closest young brown dwarf disk yet
2 Jun 2020, 18:59 UTC
Brown dwarfs are the middle child of astronomy, too big to be a planet yet not big enough to be a star. Like their stellar siblings, these objects form from the gravitational collapse of gas and dust. But rather than condensing into a star’s fiery hot nuclear core, brown dwarfs find a more zen-like equilibrium, somehow reaching a stable, milder state compared to fusion-powered stars.
NASA's Goddard Space Flight Center
2 Jun 2020, 15:15 UTC
About 3.5 million years ago, the supermassive black hole at the center of our Milky Way galaxy unleashed an enormous burst of energy. Our primitive ancestors, already afoot on the African plains, likely would have witnessed this flare as a ghostly glow high overhead in the constellation Sagittarius. It might have persisted for 1 million years.
Intense Flash From Milky Way's Black Hole Illuminated Gas Far Outside of Our Galaxy
2 Jun 2020, 15:15 UTC
About 3.5 million years ago, the supermassive black hole at the center of our Milky Way galaxy unleashed an enormous burst of energy. Our primitive ancestors, already afoot on the African plains, likely would have witnessed this flare as a ghostly glow high overhead in the constellation Sagittarius. It might have persisted for 1 million years.
Harvard-Smithsonian Center for Astrophysics
1 Jun 2020, 19:14 UTC
Scientists at the Center for Astrophysics | Harvard & Smithsonian, and the Black Hole Initiative (BHI), have shed light on how black holes grow over time by developing a new model to predict if growth by accretion or by mergers is dominant, according to the results of a study presented today at the virtual 236th meeting of the American Astronomical Society and published simultaneously in The Astrophysical Journal.
Scientists Shed Light on Growth of Black Holes
1 Jun 2020, 19:14 UTC
Scientists at the Center for Astrophysics | Harvard & Smithsonian, and the Black Hole Initiative (BHI), have shed light on how black holes grow over time by developing a new model to predict if growth by accretion or by mergers is dominant, according to the results of a study presented today at the virtual 236th meeting of the American Astronomical Society and published simultaneously in The Astrophysical Journal.
NASA Breaking News
30 May 2020, 19:38 UTC
For the first time in history, NASA astronauts have launched from American soil in a commercially built and operated American crew spacecraft on its way to the International Space Station. The SpaceX Crew Dragon spacecraft carrying NASA astronauts Robert Behnken and Douglas Hurley lifted off at 3:22 p.m. EDT Saturday on the company’s Falcon 9 rocket from Launch Complex 39A at NASA’s Kennedy Space Center in Florida.
NASA Astronauts Launch from America in Historic Test Flight of SpaceX Crew Dragon
30 May 2020, 19:38 UTC
For the first time in history, NASA astronauts have launched from American soil in a commercially built and operated American crew spacecraft on its way to the International Space Station. The SpaceX Crew Dragon spacecraft carrying NASA astronauts Robert Behnken and Douglas Hurley lifted off at 3:22 p.m. EDT Saturday on the company’s Falcon 9 rocket from Launch Complex 39A at NASA’s Kennedy Space Center in Florida.
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5 Jun 2020, 15:36 UTC
In the standard model of cosmology, dark energy fills the universe. It causes the universe to expand at an ever-increasing rate, and it makes up more than 70% of the cosmos. But there’s a problem. When we measure the rate of cosmic expansion in different ways, we get results that disagree with each other.
A New Test Confirms Dark Energy and the Expansion of the Universe
5 Jun 2020, 15:36 UTC
In the standard model of cosmology, dark energy fills the universe. It causes the universe to expand at an ever-increasing rate, and it makes up more than 70% of the cosmos. But there’s a problem. When we measure the rate of cosmic expansion in different ways, we get results that disagree with each other.
ESO Announcements
5 Jun 2020, 12:14 UTC
METIS, the powerful imager and spectrograph for ESO’s Extremely Large Telescope (ELT), has passed its Preliminary Design Review at ESO’s headquarters in Garching, Germany. METIS, short for Mid-infrared ELT Imager and Spectrograph, will make full use of the giant main mirror of the telescope to study a wide range of science topics, from objects in our Solar System to distant active galaxies. METIS will be extremely well suited to study the life cycle of stars, from infant stars and planet-forming discs to older stars near the end of their lifetime.
METIS Instrument Passes Design Milestone
5 Jun 2020, 12:14 UTC
METIS, the powerful imager and spectrograph for ESO’s Extremely Large Telescope (ELT), has passed its Preliminary Design Review at ESO’s headquarters in Garching, Germany. METIS, short for Mid-infrared ELT Imager and Spectrograph, will make full use of the giant main mirror of the telescope to study a wide range of science topics, from objects in our Solar System to distant active galaxies. METIS will be extremely well suited to study the life cycle of stars, from infant stars and planet-forming discs to older stars near the end of their lifetime.
SciTech Daily
3 Jun 2020, 12:45 UTC
About 3.5 million years ago, the supermassive black hole at the center of our Milky Way galaxy unleashed an enormous burst of energy. Our primitive ancestors, already afoot on the African plains, likely would have witnessed this flare as a ghostly glow high overhead in the constellation Sagittarius. It might have persisted for 1 million years.
Gas Far Outside of Our Galaxy Illuminated by Enormous Burst of Energy Unleashed by Milky Way’s Black Hole
3 Jun 2020, 12:45 UTC
About 3.5 million years ago, the supermassive black hole at the center of our Milky Way galaxy unleashed an enormous burst of energy. Our primitive ancestors, already afoot on the African plains, likely would have witnessed this flare as a ghostly glow high overhead in the constellation Sagittarius. It might have persisted for 1 million years.
Discover
2 Jun 2020, 19:30 UTC
For a long time after their discovery in 1877, scientists assumed Mars’ two puny moons — Deimos and Phobos — were captured asteroids. This belief persisted until evidence revealed both moons formed at the same time as the Red Planet itself, and that the smaller one, Deimos, has a mysteriously tilted orbit. However, it wasn’t until 2017 that researchers put forth a new idea that could explain why Deimos' orbit is slanted by 2 degrees.
Ancient Mars May Have Had Rings, Then Moons, Then Rings ...
2 Jun 2020, 19:30 UTC
For a long time after their discovery in 1877, scientists assumed Mars’ two puny moons — Deimos and Phobos — were captured asteroids. This belief persisted until evidence revealed both moons formed at the same time as the Red Planet itself, and that the smaller one, Deimos, has a mysteriously tilted orbit. However, it wasn’t until 2017 that researchers put forth a new idea that could explain why Deimos' orbit is slanted by 2 degrees.
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