NASA's Goddard Space Flight Center
30 Jun 2020, 15:00 UTC
Measurements from NASA’s Transiting Exoplanet Survey Satellite (TESS) have enabled astronomers to greatly improve their understanding of the bizarre environment of KELT-9 b, one of the hottest planets known.
NASA’s TESS Delivers New Insights Into an Ultrahot World
30 Jun 2020, 15:00 UTC
Measurements from NASA’s Transiting Exoplanet Survey Satellite (TESS) have enabled astronomers to greatly improve their understanding of the bizarre environment of KELT-9 b, one of the hottest planets known.
Max Planck Institute for Radio Astronomy
29 Jun 2020, 15:55 UTC
Betelgeuse, the bright star in the constellation of Orion, has been fascinating astronomers in the recent months because of its unusually strong decline in brightness. Scientists have been discussing a number of scenarios trying to explain its behaviour. Now a team led by Thavisha Dharmawardena of the Max Planck Institute for Astronomy have shown that most likely unusually large star spots on the surface of Betelgeuse have caused the dimming. Their results rule out the previous conjecture that it was dust, recently ejected by Betelgeuse, which obscured the star. The results are published today in the journal The Astrophysical Journal Letters
Betelgeuse – a giant with blemishes
29 Jun 2020, 15:55 UTC
Betelgeuse, the bright star in the constellation of Orion, has been fascinating astronomers in the recent months because of its unusually strong decline in brightness. Scientists have been discussing a number of scenarios trying to explain its behaviour. Now a team led by Thavisha Dharmawardena of the Max Planck Institute for Astronomy have shown that most likely unusually large star spots on the surface of Betelgeuse have caused the dimming. Their results rule out the previous conjecture that it was dust, recently ejected by Betelgeuse, which obscured the star. The results are published today in the journal The Astrophysical Journal Letters
NASA's Goddard Space Flight Center
26 Jun 2020, 12:13 UTC
The galaxy known as NGC 5907 stretches wide across this image. Appearing as an elongated line of stars and dark dust, the galaxy is categorized as a spiral galaxy just like our own Milky Way. In this new image from the NASA/ESA Hubble Space Telescope, we don’t see the beautiful spiral arms because we are viewing it edge-on, like looking at the rim of a plate. It is for this reason that NGC 5907 is also known as the Knife Edge galaxy.
Hubble Captures Galaxy on Edge
26 Jun 2020, 12:13 UTC
The galaxy known as NGC 5907 stretches wide across this image. Appearing as an elongated line of stars and dark dust, the galaxy is categorized as a spiral galaxy just like our own Milky Way. In this new image from the NASA/ESA Hubble Space Telescope, we don’t see the beautiful spiral arms because we are viewing it edge-on, like looking at the rim of a plate. It is for this reason that NGC 5907 is also known as the Knife Edge galaxy.
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SciTech Daily
2 Jul 2020, 08:38 UTC
The newly discovered Neptune-sized exoplanet TOI 849 b orbits its star in just 18 hours and offers a unique opportunity to peer inside a planet to investigate how planets form. Was it like Jupiter before its atmosphere was stripped or did it fail to form one in the first place?
First Exposed Planetary Core Discovered – An Extremely Unusual Planet in the So-Called “Neptune Desert”
2 Jul 2020, 08:38 UTC
The newly discovered Neptune-sized exoplanet TOI 849 b orbits its star in just 18 hours and offers a unique opportunity to peer inside a planet to investigate how planets form. Was it like Jupiter before its atmosphere was stripped or did it fail to form one in the first place?
Universe Today
1 Jul 2020, 04:08 UTC
When NASA’s new Perseverance Martian rover launches in a little over a month it will have a small robotic stow-away on board. Ingenuity is a small helicopter, with a fuselage about the size of a softball and two extending rotors that measure about 4 feet across. It was attached to the bottom of the rover’s chassis in April, and NASA recently released details about it’s technically challenging release process.
Here’s How Perseverance’s Helicopter Sidekick Will Deploy on Mars
1 Jul 2020, 04:08 UTC
When NASA’s new Perseverance Martian rover launches in a little over a month it will have a small robotic stow-away on board. Ingenuity is a small helicopter, with a fuselage about the size of a softball and two extending rotors that measure about 4 feet across. It was attached to the bottom of the rover’s chassis in April, and NASA recently released details about it’s technically challenging release process.
Lights in the Dark
30 Jun 2020, 19:11 UTC
The Sun is awesome. I mean, never mind that it contains 99% of all the mass in the Solar System, that it supplies our planet with the energy needed to sustain life, that its constantly-blowing solar wind helps keep some of those nasty cosmic particles out of the planetary neighborhood, and that it makes a bright sunshiny day on Earth possible (but remember to wear sunscreen!) In addition to all that, it’s also just really, really cool. In the hot sense, of course. But even on the Sun a little rain must fall…just not like it does here.
Sometimes it Rains on the Sun
30 Jun 2020, 19:11 UTC
The Sun is awesome. I mean, never mind that it contains 99% of all the mass in the Solar System, that it supplies our planet with the energy needed to sustain life, that its constantly-blowing solar wind helps keep some of those nasty cosmic particles out of the planetary neighborhood, and that it makes a bright sunshiny day on Earth possible (but remember to wear sunscreen!) In addition to all that, it’s also just really, really cool. In the hot sense, of course. But even on the Sun a little rain must fall…just not like it does here.
Centauri Dreams
30 Jun 2020, 16:17 UTC
Red dwarf stars have fascinated me for decades, ever since I learned that a potentially habitable planet around one might well be tidally locked. Trying to imagine a living world with a sun that didn’t move in the sky was the kind of exercise that I love about science fiction, where playing with ideas always includes a vivid visual element. What kind of landscapes would a place like this offer to the view? What kind of weather would tidal lock conjure? Stephen Baxter’s novel Proxima (Ace, 2014) is a wonderful exercise in such world-building.
Two Planets Around Nearby Gliese 887
30 Jun 2020, 16:17 UTC
Red dwarf stars have fascinated me for decades, ever since I learned that a potentially habitable planet around one might well be tidally locked. Trying to imagine a living world with a sun that didn’t move in the sky was the kind of exercise that I love about science fiction, where playing with ideas always includes a vivid visual element. What kind of landscapes would a place like this offer to the view? What kind of weather would tidal lock conjure? Stephen Baxter’s novel Proxima (Ace, 2014) is a wonderful exercise in such world-building.
Bad Astronomy
30 Jun 2020, 13:00 UTC
We know that a monster asteroid impact killed off the (non-avian) dinosaurs at the end of the Cretaceous Period. Sixty-six million years ago, a 10-kilometer wide space rock slammed into the Earth just off the coast of modern-day Yucatan, blasting a crater 150 kilometers wide and setting off a chain of catastrophic climate events that wiped out 75% of all species on the planet.
New study: The asteroid killed the dinosaurs, but volcanoes made things… better?
30 Jun 2020, 13:00 UTC
We know that a monster asteroid impact killed off the (non-avian) dinosaurs at the end of the Cretaceous Period. Sixty-six million years ago, a 10-kilometer wide space rock slammed into the Earth just off the coast of modern-day Yucatan, blasting a crater 150 kilometers wide and setting off a chain of catastrophic climate events that wiped out 75% of all species on the planet.
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