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A conjecture

Pythagoreorum quaestionum gravitationalium de tribus corporibus nulla sit recurrens solutio, cuius rei demonstrationem mirabilem inveniri posset. Hanc blogis exiguitas non caperet.

Climate Quickies: Scientists (Briefly) Discuss Climate Change

One of the problems with debunking climate change deniers is that they reuse old, long-debunked claims over and over, even long after those claims are shown to be wrong. Marshall Shepherd, the 2013 president of the American Meteorological...Show More Summary

Life in Space: Comparing Science Fact and Science Fiction

In a long list of my favorite astronauts, Sam Cristoforetti is near the top. She is an Italian space traveler with the European Space Agency, and there are a lot of reasons I like her: She has great taste in books, she is enthusiastic...Show More Summary

Gravitational waves open door to universe’s most exotic objects

LIGO's breakthrough discovery offers up new ways to test relativity, black hole collisions, dark energy, the first stars in the universe, and more

Feedback: Mars is blue, says chronicler of space oddities

Plus woof translator promises pet texting, in a spin over rogue wheelchairs, life’s uncertainties down to quantum effects, and more

OK Go Defies Gravity

OK Go is a band that’s a bit hard to define; Wikipedia lists them as “American alternative rock” which is possibly the least specific adjectival phrase I can think of (besides maybe “mostly carbon-based”). They make ridiculously catchy songs, and are better known for their quirky and astonishing videos. Show More Summary

“Upside Down & Inside Out” - OK Go Makes Art at Zero-G

OK Go just dropped their most spectacular - and daring - music video yet, “Upside Down & Inside Out.” Filmed in microgravity over many parabolic flights in Russia, “Upside Down & Inside Out” sets a new precedent for what’s possible as artists consider our future in space.

The Sea That Has Become Known

Artist Porter McDonald describes his latest painting, Mare Cognitum, which features NASA's Ranger 7 spacecraft.

Listening in

As with everyone else, LIGO made my day. It’s interesting that transverse waves of spatial strain — ripples in spacetime are consistently described as “sounds” in the media presentations. For example, the APS commentary accompanying the Physical Review Letter on GW150914 is entitled The First Sounds of Merging Black Holes. Quite frankly, Python is a […]

Field Report From Mars: Sol 4284 - February 11, 2016

Opportunity is continuing to explore the outcrops Marathon Valley, on the west rim of Endeavour crater.

Opinion: Finding Beauty in the Darkness

Einstein’s “ripples” should matter to everyone — not just physicists.

Trilobites: Scientists Chirp Excitedly for LIGO, Gravitational Waves and Einstein

Before a big physics announcement, scientists took to social media to share their best imitations of two black holes colliding.

Gravitational waves detected at last as black holes collide

This is a post from Skymania News - Space and astronomy news and advice plus night sky Jubilant scientists have made one of their most important discoveries ever by detecting gravitational waves from two colliding black holes, they announced today. Show More Summary

LIGO Sees First Ever Gravitational Waves As Two Black Holes Eat Each Other

Better start shining up some new Nobel Prize medals: Scientists have reported that, for the very first time in history, they have detected gravitational waves. And oh my yes, this is a very big deal. It will open up an entirely new field of astronomy, a new way to observe the Universe. Show More Summary

Revolution in physics as gravitational waves seen for first time

Einstein’s last prediction and one of the most anticipated discoveries in physics has finally been confirmed. The LIGO experiment has seen ripples in space-time, caused by a black hole merger

Winter Issue of The Planetary Report is Here!

The winter issue of The Planetary Report is at the printer and will be in your mailbox soon if you're a member of The Planetary Society. (And if you're not, join now!)

Supernova SN 2016adj in Centaurus A

Supernova SN 2016adj in Centaurus A, taken with iTelescope T9 at the Siding Spring Observatory on 11 February at 3:45 AEDST. 1 x5 minute exposure. The Supernova is indicated by the arrows, it is the tiny star next to the very bright (magnitude 8) star. Click to embiggen.I will have to take shorter exposures and stack them if I want to do photometery.

Curiosity update, sols 1218-1249: Digging in the sand at Bagnold Dunes

Curiosity has spent the last month sampling and processing dark sand scooped from the slip face of Namib Dune. The rover has now departed Namib and is preparing to cross the Bagnold dune field, while working to diagnose an anomaly with the CHIMRA sample handling mechanism.

Einstein’s last theory confirmed? A guide to gravitational waves

We're expecting huge physics news tomorrow – get ahead of the crowd with our primer on gravitational waves


Uluru is a gigantic sandstone monolith in the Australian Outback. And I do mean gigantic; it’s three kilometers (10,000 feet) across its widest point, and juts up an imposing 350 meters into the sky. Well, imposing from the ground. From...Show More Summary

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