Astronomers Find a New Trojan Asteroid Sharing Earth’s Orbit

The Trojan asteroid 2020 XL5, which follows the same path around the sun as our planet, was revealed only after a decade of searching.

#asteroids, #earth, #gravitation-and-gravity, #nature-communications-journal, #planets, #research, #solar-system, #space-and-astronomy

Why Can’t Astronauts Have Disabilities? 12 Flyers Search for Proof They Can.

People with different types of disabilities tested their skills and technologies on a zero-gravity research flight with the goal of proving that they can safely go to space.

#astroaccess-nonprofit, #disabilities, #gravitation-and-gravity, #private-spaceflight, #regulation-and-deregulation-of-industry, #space-and-astronomy

A Nobel Prize for Stephen Hawking That Might Have Been

A recent study of black holes confirmed a fundamental prediction that the theoretical physicist made nearly five decades ago. But the ultimate award is beyond his reach.

#barish-barry-clark, #black-holes-space, #brout-robert-1928-2011, #california-institute-of-technology, #drever-ronald-1931-2017, #ghez-andrea, #gravitation-and-gravity, #hawking-stephen-w, #laser-interferometer-gravitational-wave-observatory-ligo, #nobel-prizes, #physical-review-letters, #physics, #space-and-astronomy, #thorne-kip-s, #your-feed-science

What to Name a Bunch of Black Holes? You Had Some Ideas.

Recently, astronomers asked aloud which plural term would best suit the most enigmatic entity in the cosmos. The responses were plentiful.

#black-holes-space, #european-space-agency, #gravitation-and-gravity, #national-aeronautics-and-space-administration, #physics, #space-and-astronomy, #vanderbilt-university, #your-feed-science

An Astronaut’s Heart Shrank From Space Travel, Study Finds

After almost a year in space, Scott Kelly’s heart diminished, but he remained reasonably fit.

#circulation-journal, #gravitation-and-gravity, #heart, #international-space-station, #kelly-scott-j, #national-aeronautics-and-space-administration, #space-and-astronomy, #space-stations

The Most Intimate Portrait Yet of a Black Hole

Two years of analyzing the polarized light from a galaxy’s giant black hole has given scientists a glimpse at how quasars might arise.

#astrophysical-journal-letters, #black-holes-space, #event-horizon-telescope, #gravitation-and-gravity, #laser-interferometer-gravitational-wave-observatory-ligo, #messier-87-galaxy, #photography, #space-and-astronomy, #stars-and-galaxies, #telescopes-and-observatories, #your-feed-science

Missing: One Black Hole With 10 Billion Solar Masses

One of the biggest galaxies in the universe seems to lack its dark centerpiece.

#black-holes-space, #gravitation-and-gravity, #space-and-astronomy, #stars-and-galaxies, #your-feed-science

Newton’s ‘Principia’ Had a Surprisingly Wide Audience, Historians Find

The discovery suggests that “Principia” had a stronger impact on Enlightenment science than previous research suggested.

#annals-of-science-journal, #books-and-literature, #central-europe, #europe, #gravitation-and-gravity, #libraries-and-librarians, #mathematics, #newton-isaac, #philosophiae-naturalis-principia-mathematica-book, #physics, #space-and-astronomy, #your-feed-science

A Black Hole’s Lunch: Stellar Spaghetti

Astronomers observed a star become a “feast” for a cosmic monster.

#black-holes-space, #gravitation-and-gravity, #monthly-notices-of-the-royal-astronomical-society-journal, #space-and-astronomy, #stars-and-galaxies, #telescopes-and-observatories, #your-feed-science

Why a Perfect Spiral Football Pass Doesn’t Break the Laws of Physics

These physicists were never amazing football players, but they’ve helped explain some of the magic when a quarterback goes deep.

#american-journal-of-physics, #football, #gravitation-and-gravity, #physics, #research, #your-feed-science

Is There a Black Hole in Our Backyard?

Astrophysicists have recently begun hatching plans to find out just how weird Planet Nine might be.

#black-holes-space, #gravitation-and-gravity, #large-synoptic-survey-telescope, #physics, #solar-system, #space-and-astronomy, #stars-and-galaxies, #telescopes-and-observatories, #your-feed-science

These Black Holes Shouldn’t Exist, but There They Are

On the far side of the universe, a collision of dark giants sheds light on an invisible process of cosmic growth.

#astrophysical-journal-letters, #black-holes-space, #gravitation-and-gravity, #laser-interferometer-gravitational-wave-observatory-ligo, #physical-review-letters, #physics, #space-and-astronomy, #stars-and-galaxies, #your-feed-science

Beyond the Milky Way, a Galactic Wall

Astronomers have discovered a vast assemblage of galaxies hidden behind our own, in the “zone of avoidance.”

#astrophysical-journal, #dark-matter-astronomy, #gravitation-and-gravity, #milky-way-galaxy, #space-and-astronomy, #stars-and-galaxies, #tully-r-brent, #your-feed-science

Two Black Holes Colliding Not Enough? Make It Three

Astronomers claim to have seen a flash from the merger of two black holes within the maelstrom of a third, far bigger one.

#black-holes-space, #gravitation-and-gravity, #laser-interferometer-gravitational-wave-observatory-ligo, #physical-review-letters, #quasars, #research, #space-and-astronomy, #stars-and-galaxies, #your-feed-science

A Black Hole’s Lunch Provides a Treat for Astronomers

Scientists have discovered the heaviest known neutron star, or maybe the lightest known black hole: “Either way it breaks a record.”

#astrophysical-journal-letters, #black-holes-space, #gravitation-and-gravity, #italy, #laser-interferometer-gravitational-wave-observatory-ligo, #space-and-astronomy, #stars-and-galaxies, #your-feed-science

The U.S. Is Getting Shorter, as Mapmakers Race to Keep Up

Scientists are hard at work recalibrating where and how the nation physically sits on the planet. It’s not shrinkage — it’s “height modernization.”

#blackwell-juliana-p, #buildings-structures, #california, #davis-james-l, #earth, #florida, #global-positioning-system, #gravitation-and-gravity, #national-oceanic-and-atmospheric-administration, #navigation, #pacific-northwestern-states-us, #satellites, #texas, #united-states, #your-feed-science, #zilkoski-david-b

The Galaxy That Grew Up Too Fast

A vast wheel of gas in the primordial cosmos is forcing astronomers to rethink how some of the universe’s largest structures may have formed.

#chile, #dark-matter-astronomy, #gravitation-and-gravity, #milky-way-galaxy, #nature-journal, #neeleman-marcel, #peebles-james, #physics, #prochaska-j-xavier, #quasars, #space-and-astronomy, #stars-and-galaxies, #telescopes-and-observatories, #wolfe-arthur-1939-2014, #your-feed-science

You Need Something New to Watch. What About the Universe?

Discover the boundaries of science — from your couch.

#einstein-albert, #gravitation-and-gravity, #laser-light-amplification-by-stimulated-emission-of-radiation, #laser-interferometer-gravitational-wave-observatory-ligo, #massachusetts-institute-of-technology, #nobel-prizes, #weiss-rainer-1932