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Bad Astronomy | A magnetar distance has been directly measured for the first time

Scientists have directly measured the distance to a magnetar for the first time.

Aurore-simonnet , Sophia-dagnello , Sonoma-state-university , Neutron-stars , Crash-course-astronomy , Sonoma-state , Milky-way , Bad-astronomy , Eutron-stars , Agnetars , Ast-radio-bursts

Bad Astronomy | Neutron stars may be bigger than thought before

New experiments measuring the size of lead nuclei show neutron stars may be bigger than previously thought.

United-states , Aurore-simonnet , Goddard-space-flight-center , Sonoma-state-university , Sonoma-state , Neutron-stars , Crash-course-astronomy , Space-flight-center , Bad-astronomy , Eutron-stars , Agnetars , Cience

Bad Astronomy | Methuselah's Star, HD 140238, is not older than the Universe

Such is HD 140283, a star similar to the Sun that lies 200 light years from Earth — pretty close as stars go. It's been known for some time to be a special kind of star, one we say is low metallicity.
metals for historical reasons) didn't start turning up until massive stars made them in their cores, exploded, and sent them sleeting out into space to get incorporated into newer stars.
What this means is that older stars tend to have fewer heavy elements in them, and younger stars have more. We use the Sun as a standard, because why not. By that measure, HD 140283 has a metallicity 1/250

Big-bang , Brief-history , Crash-course-astronomy , Milky-way , Phil-plait , What-methuselah , Bad-astronomy , Tars , Niverse , Cience , பெரியது-இடி

Bad Astronomy | Black holes may not swarm in the globular cluster NGC 6397

Bad Astronomy | Black holes may not swarm in the globular cluster NGC 6397
syfy.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from syfy.com Daily Mail and Mail on Sunday newspapers.

S-casertano-stsc , J-anderson-stsc , Milky-way , Star-clusters , Crash-course-astronomy , பால்-வழி , நட்சத்திரம்-கொத்துகள் , செயலிழப்பு-நிச்சயமாக-வானியல் ,

Bad Astronomy | Albireo multiple star system is still a perplexing mystery

Albireo is a wide double star, but may actually be a binary, or a trinary, and maybe a black hole is there too.

Tom-wildoner , Beta-cygni , Ron-drimmel , Northern-cross , Getty-images-plus , Getty-images , Multiple-stars , Crash-course-astronomy , Bad-astronomy , Inary-star-system , Lack-holes

Bad Astronomy | Dark matter rmay cause exoplanets to heat up and glow, betraying its presence

We know that dark matter exists, but, irritatingly, we don’t know what it is.
One way to figure that out is to look for signs of it here on Earth, using subatomic particle detectors. But a new idea just published in a scientific journal is that we need to go bigger. A lot bigger: Using
entire exoplanets as detectors.
I give them points for thinking originally, for sure.
* matter directly. It affects the way galaxies rotate, the way galaxies behave in clusters, the way clusters affect the light of objects behind them, and a host of other things, too. We know it exists. And over the decades people have looked for it, but almost everything that could possibly work has been eliminated. It’s not teeny black holes, or rogue planets, or cold gas. Nothing made of normal matter works, leaving only “exotic” subatomic particles like axions as candidates. Attempts have been made to look for those, too, but so far zip.

Ohio , United-states , Rebecca-leane , Juri-smirnov , M-zamani-international-gemini-observatory-noirlab , Ohio-state-astronomy-department , International-gemini-observatory-noirlab , Milky-way , Milky-way-galaxy , Gemini-observatory , International-gemini , James-webb-space-telescope

Bad Astronomy | A black hole tore a star apart, creating a tidal disruption event

Soon multiple observatories on and above the world were peering at it, measuring its light and taking the measure of this event. Its position on the sky corresponded to a somewhat ordinary galaxy about 730 million light years from Earth. But, like all decent-sized galaxies, this one has a supermassive black hole in its center. The exact mass of the black hole isn't well constrained, but is 5 to perhaps 30 million times the mass of the Sun. This actually puts it on the small end of such beasts; many are billions of times the mass of the Sun.
Still, it's not something you want to toy with. But a star in that galaxy frakked around and found out.

Robin-dienel , Carnegie-institution-for-science , Carnegie-institution , Black-hole-star , Black-holes , Crash-course-astronomy , Bad-astronomy , Lack-holes , Tars , Cience , Idal-forces , கார்னகி-நிறுவனம்-க்கு-அறிவியல்

Bad Astronomy | Hubble's anniversary photo of a star nearing a supernova

Bad Astronomy | Hubble's anniversary photo of a star nearing a supernova
syfy.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from syfy.com Daily Mail and Mail on Sunday newspapers.

Roger-chevalier , Stsci-judy-schmidt , P-challis-harvard-smithsonian-center , Betty-moore-foundation , R-kirshner-harvard-smithsonian-center , Space-shuttle , Hubble-space-telescope , High-mass-stars , Crash-course-astronomy , Harvard-smithsonian-center , ரோஜர்-செவாலியர் , ப்-சல்லிஸ்-ஹார்வர்ட்-ஸ்மித்சோனியன்-மையம்

Bad Astronomy | Comet 2016 BA14 is covered in talcum powder

Bad Astronomy | Comet 2016 BA14 is covered in talcum powder
syfy.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from syfy.com Daily Mail and Mail on Sunday newspapers.

France , Orgueil , Midi-pyrées , Subaru , Y-li-planetary-science-institute , Crash-course-astronomy , Planetary-science-institute , Cooled-mid-infrared-camera , பிரான்ஸ் , சுபாரு , ய்-லி-கிரகங்கள்-அறிவியல்-நிறுவனம்

Bad Astronomy | 5200 tons of meteorite dust falls to Earth every year

New research looking at micrometeorites — literally microscopic bits of meteorites, particles of rocks and metals from space that fall to Earth — shows that about
5,200 tons of this cosmic debris settles onto the ground every year. 5.2 million kilos per annum, or about 14 tons per day. At
least. That's equivalent to the mass of a garbage truck every day.
Oof.
Also, this is very wee stuff, smaller than a millimeter in size and some smaller than the width of a human hair. There's no reason to panic
*. It slows from interplanetary speeds to basically 0 way up in the atmosphere and then drifts down to the ground. It's no danger, and in fact is quite welcome, since it tells us a lot about what's going on in space.

Antarctica , Engrand-jean-duprat , Jean-duprat , John-chumack , Crash-course-astronomy , Concordia-research-station , South-pole , Bad-astronomy , Meteorites , Comets , Science