Comets
Why dangerous asteroids heading to Earth are so hard to detect  PHYS.ORG · 2 hours
Earth is often in the firing line of fragments of asteroids and comets, most of which burn up tens of kilometres above our heads. But occasionally,... more
How a Viral Comet Crash Into Jupiter Helped Popularize the Internet  SPACE.COM · 2 days
A quarter century ago and thousands of miles away, a dramatic weeklong cosmic collision unfolded and helped the internet gain a foothold in people's lives. more
Oumuamua is Interstellar Comet with Odd Properties, Astronomers Say  SCI-NEWS.COM · 1 week
‘Oumuamua, a recently discovered object of extrasolar origin, is a comet that rocks, according to a new study... more
Regarding Facebook’s cryptocurrency  TechCrunch · 3 weeks
If Bloomberg and the New York Times are to be believed, later this year Facebook will introduce a cryptocurrency which will allow WhatsApp users to send money instantly. Yes, that’s right: Facebook. Cryptocurrency. Earthquake! Revolution! The world is tilting on... more
Exiled planet linked to stellar flyby three million years ago  PHYS.ORG · 3 weeks
Some of the peculiar aspects of our solar system—an enveloping cloud of comets, dwarf planets in weird orbits and, if it truly exists, a possible Planet Nine far... more
Direct evidence of nonstationary collisionless shocks in space plasmas  Science Magazine · 3 weeks
Collisionless shocks are ubiquitous throughout the universe: around stars, supernova remnants, active galactic nuclei, binary systems, comets, and planets. Key information is carried by electromagnetic emissions from particles accelerated by... more
Do volcanoes or an asteroid deserve blame for dinosaur extinction?  SCIENCE DAILY · 4 weeks
Scientists have obtained more precise dates for the Deccan Traps volcanic lava flows, linking peak activity more closely to the asteroid or comet impact 66 million years ago... more
Do volcanoes or an asteroid deserve blame for dinosaur extinction?  PHYS.ORG · 4 weeks
UC Berkeley scientists have obtained more precise dates for the Deccan Traps volcanic lava flows, linking peak activity more closely to the asteroid or comet impact 66 million... more
Neptune's newfound moon, Hippocamp, might be left over from a comet crash - CNET  CNET · 4 weeks
The Neptune neighbor, missed until now, offers clues to how moons form and shows once again that space is more... more
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