ESA Top News
19 Jun 2019, 13:20 UTC
‘Comet Interceptor’ has been selected as ESA’s new fast-class mission in its Cosmic Vision Programme. Comprising three spacecraft, it will be the first to visit a truly pristine comet or other interstellar object that is only just starting its journey into the inner Solar System.
ESA’s new mission to intercept a comet
19 Jun 2019, 13:20 UTC
‘Comet Interceptor’ has been selected as ESA’s new fast-class mission in its Cosmic Vision Programme. Comprising three spacecraft, it will be the first to visit a truly pristine comet or other interstellar object that is only just starting its journey into the inner Solar System.
NASA's Chandra X-ray Observatory
18 Jun 2019, 18:20 UTC
We have seen intricate patterns that milk makes in coffee and much smoother ones that honey makes when stirred with a spoon. Which of these cases best describes the behavior of the hot gas in galaxy clusters? By answering this question, a new study using NASA's Chandra X-ray Observatory has deepened our understanding of galaxy clusters, the largest structures in the Universe held together by gravity.
Does the Gas in Galaxy Clusters Flow Like Honey?
18 Jun 2019, 18:20 UTC
We have seen intricate patterns that milk makes in coffee and much smoother ones that honey makes when stirred with a spoon. Which of these cases best describes the behavior of the hot gas in galaxy clusters? By answering this question, a new study using NASA's Chandra X-ray Observatory has deepened our understanding of galaxy clusters, the largest structures in the Universe held together by gravity.
Planetary Habitability Laboratory
18 Jun 2019, 09:58 UTC
Zechmeister et al. (2019) report as part of the CARMENES project the discovery of two potentially habitable planets around Teegarden's Star, an old nearby red dwarf star 12 light-years away in the Aries constellation. Both planets have minimum masses similar to Earth and orbit within the star's habitable zone.
Teegarden's Star: A Nearby System with two Potentially Habitable Worlds
18 Jun 2019, 09:58 UTC
Zechmeister et al. (2019) report as part of the CARMENES project the discovery of two potentially habitable planets around Teegarden's Star, an old nearby red dwarf star 12 light-years away in the Aries constellation. Both planets have minimum masses similar to Earth and orbit within the star's habitable zone.
Max Planck Institute for Astronomy
18 Jun 2019, 02:00 UTC
An international team of astronomers has found two Earth-like planets around one of the smallest known stars known as “Teegarden’s star.” The planets, which orbit in the star’s habitable zone where liquid water is possible, are only a quarter and a third more massive than the Earth, respectively. The discovery helps complete our picture of the statistics of exoplanet prevalence, correcting implicit biases in earlier observations. Incidentally, hypothetical observers on those planets would soon be in a uniquely favorable position to detect our Earth, using the so-called transit method. The results have just been published in the journal Astronomy & Astrophysics.
Two Earth-like planets around one of the smallest stars, and a slim chance someone there might see Earth
18 Jun 2019, 02:00 UTC
An international team of astronomers has found two Earth-like planets around one of the smallest known stars known as “Teegarden’s star.” The planets, which orbit in the star’s habitable zone where liquid water is possible, are only a quarter and a third more massive than the Earth, respectively. The discovery helps complete our picture of the statistics of exoplanet prevalence, correcting implicit biases in earlier observations. Incidentally, hypothetical observers on those planets would soon be in a uniquely favorable position to detect our Earth, using the so-called transit method. The results have just been published in the journal Astronomy & Astrophysics.
NASA's Goddard Space Flight Center
17 Jun 2019, 15:14 UTC
The Sun is why we’re here. It’s also why Martians or Venusians are not.
NASA Scientists Find Sun’s History Buried in Moon’s Crust
17 Jun 2019, 15:14 UTC
The Sun is why we’re here. It’s also why Martians or Venusians are not.
NASA's Jet Propulsion Laboratory News and Features
14 Jun 2019, 15:09 UTC
As NASA's Cassini dove close to Saturn in its final year, the spacecraft provided intricate detail on the workings of Saturn's complex rings, new analysis shows.
NASA's Cassini Reveals New Sculpting in Saturn Rings
14 Jun 2019, 15:09 UTC
As NASA's Cassini dove close to Saturn in its final year, the spacecraft provided intricate detail on the workings of Saturn's complex rings, new analysis shows.
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- 18 Jun 2019
Blogs
Universe Today
18 Jun 2019, 23:00 UTC
NASA’s OSIRIS-REx spacecraft has been at asteroid Bennu since Dec. 3rd, 2018. On that day, it went from travelling to the asteroid to travelling around it. Now OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer) has reached a new milestone. On June 12th, the spacecraft executed another maneuver, and in the process broke its own record for the closest orbit of a planetary body by a spacecraft.
This is the Closest OSIRIS-REx has Gotten to Bennu. Just 680 Meters Above the Asteroid
18 Jun 2019, 23:00 UTC
NASA’s OSIRIS-REx spacecraft has been at asteroid Bennu since Dec. 3rd, 2018. On that day, it went from travelling to the asteroid to travelling around it. Now OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer) has reached a new milestone. On June 12th, the spacecraft executed another maneuver, and in the process broke its own record for the closest orbit of a planetary body by a spacecraft.
Universe Today
18 Jun 2019, 18:02 UTC
On Earth, clouds form when enough droplets of water condense out of the air. And those droplets require a tiny speck of dust or sea salt, called a condensation nuclei, to form. In Earth’s atmosphere, those tiny specks of dust are lofted high into the atmosphere where they trigger cloud formation. But on Mars?
Martian Clouds Might Start with Meteor Trails Through the Atmosphere
18 Jun 2019, 18:02 UTC
On Earth, clouds form when enough droplets of water condense out of the air. And those droplets require a tiny speck of dust or sea salt, called a condensation nuclei, to form. In Earth’s atmosphere, those tiny specks of dust are lofted high into the atmosphere where they trigger cloud formation. But on Mars?
Starts With a Bang!
18 Jun 2019, 14:01 UTC
One of the most profound rules in all the Universe is that nothing lasts forever. With gravitational, electromagnetic and nuclear forces all acting on matter, practically everything we observe to exist today will face changes in the future. Even the stars, the most enormous collections that transform nuclear fuel in the cosmos, will someday all burn out, including our Sun. But this does not mean that stellar death — when stars run out of nuclear fuel — is actually the end for a star like our Sun. Quite to the contrary, there are a number of fascinating things in store for all stars once they’ve died that first, most obvious death. Although it’s true that our Sun’s fuel is finite and we fully expect it to undergo a “typical” stellar death, this death is not the end. Not for our Sun, and not for any Sun-like stars. Here’s what comes next.
This Is What Will Happen To Our Sun After It Dies
18 Jun 2019, 14:01 UTC
One of the most profound rules in all the Universe is that nothing lasts forever. With gravitational, electromagnetic and nuclear forces all acting on matter, practically everything we observe to exist today will face changes in the future. Even the stars, the most enormous collections that transform nuclear fuel in the cosmos, will someday all burn out, including our Sun. But this does not mean that stellar death — when stars run out of nuclear fuel — is actually the end for a star like our Sun. Quite to the contrary, there are a number of fascinating things in store for all stars once they’ve died that first, most obvious death. Although it’s true that our Sun’s fuel is finite and we fully expect it to undergo a “typical” stellar death, this death is not the end. Not for our Sun, and not for any Sun-like stars. Here’s what comes next.
SpaceFlight Insider
18 Jun 2019, 04:01 UTC
Prospects of establishing a permanent human presence on the Moon have taken a step forward with the test of a system known as Kilopower, a lightweight fission reactor which could provide ten kilowatts of power for at least a decade.
NASA concept for generating power in deep space a little KRUSTY
18 Jun 2019, 04:01 UTC
Prospects of establishing a permanent human presence on the Moon have taken a step forward with the test of a system known as Kilopower, a lightweight fission reactor which could provide ten kilowatts of power for at least a decade.
Universe Today
17 Jun 2019, 20:18 UTC
To say there are some myths circulating about Martian dust storms would be an understatement. Mars is known for its globe-encircling dust storms, the likes of which are seen nowhere else. Science fiction writers and Hollywood movies often make the dust storms out to be more dangerous than they really are. In reality—though global dust storms are a true spectacle, and winds can reach speeds of nearly 100 kph (60mph)—they’re not violent.
Earth has a Water Cycle. Mars has a Dust Cycle
17 Jun 2019, 20:18 UTC
To say there are some myths circulating about Martian dust storms would be an understatement. Mars is known for its globe-encircling dust storms, the likes of which are seen nowhere else. Science fiction writers and Hollywood movies often make the dust storms out to be more dangerous than they really are. In reality—though global dust storms are a true spectacle, and winds can reach speeds of nearly 100 kph (60mph)—they’re not violent.
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