NASA's Jet Propulsion Laboratory News and Features
13 Sep 2019, 14:22 UTC
Scientists have discovered that a mysterious pressure dubbed "dark energy" makes up about 68% of the total energy content of the cosmos, but so far we don't know much more about it. Exploring the nature of dark energy is one of the primary reasons NASA is building the Wide Field Infrared Survey Telescope (WFIRST), a space telescope whose measurements will help illuminate the dark energy puzzle. With a better understanding of dark energy, we will have a better sense of the past and future evolution of the universe.
NASA's WFIRST Will Help Uncover the Universe's Fate
13 Sep 2019, 14:22 UTC
Scientists have discovered that a mysterious pressure dubbed "dark energy" makes up about 68% of the total energy content of the cosmos, but so far we don't know much more about it. Exploring the nature of dark energy is one of the primary reasons NASA is building the Wide Field Infrared Survey Telescope (WFIRST), a space telescope whose measurements will help illuminate the dark energy puzzle. With a better understanding of dark energy, we will have a better sense of the past and future evolution of the universe.
NASA's Goddard Space Flight Center
13 Sep 2019, 11:30 UTC
This image, taken with the NASA/ESA Hubble Space Telescope, focuses on an object named UGC 695, which is located 30 million light-years away within the constellation Cetus (the Sea Monster), also known as the Whale. A bounty of diverse background galaxies is also visible in this image.
Hubble Glimpses Faint Galaxy
13 Sep 2019, 11:30 UTC
This image, taken with the NASA/ESA Hubble Space Telescope, focuses on an object named UGC 695, which is located 30 million light-years away within the constellation Cetus (the Sea Monster), also known as the Whale. A bounty of diverse background galaxies is also visible in this image.
NASA's Jet Propulsion Laboratory News and Features
13 Sep 2019, 06:52 UTC
A newly discovered comet has excited the astronomical community this week because it appears to have originated from outside the solar system. The object - designated C/2019 Q4 (Borisov) - was discovered on Aug. 30, 2019, by Gennady Borisov at the MARGO observatory in Nauchnij, Crimea. The official confirmation that comet C/2019 Q4 is an interstellar comet has not yet been made, but if it is interstellar, it would be only the second such object detected. The first, 'Oumuamua, was observed and confirmed in October 2017.
Newly Discovered Comet Is Likely Interstellar Visitor
13 Sep 2019, 06:52 UTC
A newly discovered comet has excited the astronomical community this week because it appears to have originated from outside the solar system. The object - designated C/2019 Q4 (Borisov) - was discovered on Aug. 30, 2019, by Gennady Borisov at the MARGO observatory in Nauchnij, Crimea. The official confirmation that comet C/2019 Q4 is an interstellar comet has not yet been made, but if it is interstellar, it would be only the second such object detected. The first, 'Oumuamua, was observed and confirmed in October 2017.
MIT
12 Sep 2019, 13:29 UTC
If Albert Einstein’s theory of general relativity holds true, then a black hole, born from the cosmically quaking collisions of two massive black holes, should itself “ring” in the aftermath, producing gravitational waves much like a struck bell reverbates sound waves. Einstein predicted that the particular pitch and decay of these gravitational waves should be a direct signature of the newly formed black hole’s mass and spin.
Scientists detect tones in the ringing of a newborn black hole for the first time
12 Sep 2019, 13:29 UTC
If Albert Einstein’s theory of general relativity holds true, then a black hole, born from the cosmically quaking collisions of two massive black holes, should itself “ring” in the aftermath, producing gravitational waves much like a struck bell reverbates sound waves. Einstein predicted that the particular pitch and decay of these gravitational waves should be a direct signature of the newly formed black hole’s mass and spin.
Square Kilometer Array
12 Sep 2019, 08:00 UTC
An international team of astronomers using South Africa’s MeerKAT radio telescope has discovered enormous balloon-like structures that tower hundreds of light-years above and below the centre of our galaxy.
South Africa’s MeerKAT telescope discovers giant radio ‘bubbles’ at centre of Milky Way
12 Sep 2019, 08:00 UTC
An international team of astronomers using South Africa’s MeerKAT radio telescope has discovered enormous balloon-like structures that tower hundreds of light-years above and below the centre of our galaxy.
NASA's Chandra X-ray Observatory
11 Sep 2019, 17:22 UTC
A supermassive black hole is blasting out X-rays about every nine hours, according to data from NASA's Chandra X-ray Observatory and ESA's XMM-Newton, as described in our latest press release. This indicates that this black hole, containing about 400,000 times the mass of our Sun, is consuming significant amounts of material about three times per day.
Scientists Discover Black Hole Has Three Hot Meals a Day
11 Sep 2019, 17:22 UTC
A supermassive black hole is blasting out X-rays about every nine hours, according to data from NASA's Chandra X-ray Observatory and ESA's XMM-Newton, as described in our latest press release. This indicates that this black hole, containing about 400,000 times the mass of our Sun, is consuming significant amounts of material about three times per day.
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13 Sep 2019, 16:22 UTC
It’s looking likely that a newly discovered comet is actually an interstellar interloper from beyond our solar system.
Astronomers May Have Found an Interstellar Comet. Here's Why That Matters.
13 Sep 2019, 16:22 UTC
It’s looking likely that a newly discovered comet is actually an interstellar interloper from beyond our solar system.
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Periodic x-ray flares give clues about how black holes eat.
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13 Sep 2019, 14:39 UTC
An unusual set of chemical fingerprints spotted in the light from a distant star could be the remnants of a digested planet, according to a new study by researchers in Sweden. In 2017 astronomers making spectroscopic observations of several stars in the open star cluster Messier 67 spotted one – dubbed Y2235 – with elevated levels of certain elements on its “surface”. These included carbon, magnesium and oxygen as well as heavier elements such as cerium, iron and yttrium.
Planet-eating star could be lurking in nearby cluster
13 Sep 2019, 14:39 UTC
An unusual set of chemical fingerprints spotted in the light from a distant star could be the remnants of a digested planet, according to a new study by researchers in Sweden. In 2017 astronomers making spectroscopic observations of several stars in the open star cluster Messier 67 spotted one – dubbed Y2235 – with elevated levels of certain elements on its “surface”. These included carbon, magnesium and oxygen as well as heavier elements such as cerium, iron and yttrium.
SPACE.com
13 Sep 2019, 12:03 UTC
Astronomers have discovered a bright, young star that is running away from home. Why? What did the star's parents do to deserve this? According to a study published Aug. 6 in the journal Astronomy & Astrophysics, it's nobody's fault; it seems the young star simply fell in with the wrong crowd — namely, a very hungry black hole.
This Ridiculously Speedy Star Might Be Running Away from a Rare, Unproven Type of Black Hole
13 Sep 2019, 12:03 UTC
Astronomers have discovered a bright, young star that is running away from home. Why? What did the star's parents do to deserve this? According to a study published Aug. 6 in the journal Astronomy & Astrophysics, it's nobody's fault; it seems the young star simply fell in with the wrong crowd — namely, a very hungry black hole.
Astronaut.com
13 Sep 2019, 11:15 UTC
If you could pack a hot air balloon onto an interstellar spaceship and travel 110 light years to a certain planet orbiting a dim star in the constellation Leo, you’d have an experience not entirely unlike ballooning on Earth. The temperature, pressure, and moist air could feel quite pleasant, though you’d need an oxygen mask—and possibly an umbrella.
This distant world is a lot like Earth, but you wouldn’t want to live there
13 Sep 2019, 11:15 UTC
If you could pack a hot air balloon onto an interstellar spaceship and travel 110 light years to a certain planet orbiting a dim star in the constellation Leo, you’d have an experience not entirely unlike ballooning on Earth. The temperature, pressure, and moist air could feel quite pleasant, though you’d need an oxygen mask—and possibly an umbrella.
Universe Today
13 Sep 2019, 07:33 UTC
Hubble has captured a new image of Saturn that makes you wonder if it’s even real. The image is so crisp it makes it look like Saturn is just floating in space. Which it is. This image of the ringed-planet was captured when Saturn was at its closest to Earth, some 1.36 billion km away (845 million miles) on June 20th, 2019. The crisp image was captured with Hubble’s Wide Field Camera 3 (WFC3.)
Here’s Hubble’s Newest Image of Saturn
13 Sep 2019, 07:33 UTC
Hubble has captured a new image of Saturn that makes you wonder if it’s even real. The image is so crisp it makes it look like Saturn is just floating in space. Which it is. This image of the ringed-planet was captured when Saturn was at its closest to Earth, some 1.36 billion km away (845 million miles) on June 20th, 2019. The crisp image was captured with Hubble’s Wide Field Camera 3 (WFC3.)
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