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You might have seen a bright, white-purple ribbon weaving up into the sky, unlike anything you had ever seen before. Could it be lighting? Fireworks? Maybe a spaceship finally bringing the first wave of envoys from the nearest habitable planet?

https://rxscience.org/mystery-of-purple-lights-in-sky-solved-by-astronomers/
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Hiding - Normandy
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+Gregg Keizer looks at what's new in Chrome 70.
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Village - Normandy
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“Over time, galaxies merged together and grew, but small, faint galaxies still remain today. Even in our own Local Group, we’re still discovering galaxies that contain mere thousands of stars, and the number of galaxies we know of have increased to more than 70. The faintest, smallest, most distant galaxies of all are continuing to go undiscovered, but we know they must be there. For the first time, we can scientifically estimate how many galaxies are out there in the Universe.

The next step in the great cosmic puzzle is to find and characterize as many of them as possible, and understand how the Universe grew up. Led by the James Webb Space Telescope and the next generation of ground-based observatories, including LSST, GMT, and the ELT, we’re poised to reveal the hitherto unseen Universe as never before.”

How many galaxies are there in the Universe? If you had asked Carl Sagan a generation ago, the answer might have been something vague, like billions and billions. Just a decade or two ago, people would have guesstimated around 100 billion, as deep surveys from Hubble could give us a count of galaxies both near-and-far in a small region of the sky. But those estimates aren’t necessarily any good, except to serve as lower limits. In order to understand how many galaxies must truly be out there, it requires us to understand both what the Universe is made of and what constitutes a galaxy. Only in the last few years have we reached that level of sophistication, and come up with what we believe, for the first time, is an accurate number.

That number? Two trillion. There are two trillion galaxies in the Universe. This is the story of how we know.
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Trump threatens to deploy military, close border over migrant ‘caravan’ https://nyp.st/2CR1dp5
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Prince Harry’s Other Ring Gets the Meghan Markle Treatment: Total Tabloid Panic http://vntyfr.com/HBgoamG
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Princess Eugenie borrowed this £8 product from Meghan Markle and Kate Middleton
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Twelve drivers invited to participate at New Smyrna Speedway

Tags: #nascar #sports #racing
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The Obama family is set to produce TV series and movies in collaboration with #Netflix

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A team of scientist sounds the alarm in a new Science Policy Forum report about a mysterious US government program that is developing genetically modified viruses that would be dispersed into the environment using insects.

Each plant would then be infected by the insect, triggering the intended effects of protecting crops from natural and or human-made threats.

The scientists of the report interpret #DARPA's insect program as "an intention to develop a means of delivery of HEGAAs for offensive purposes," such as conducting biological warfare. http://humansarefree.com/2018/10/darpa-plans-to-spread-viruses-using.html
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10 Google Tricks That Will Change the Way You Search #news #tech #google #search #tips #tricks #tutorial
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Good riddance. Thanks to this guy, I'll be dead before America will see the federal bench straightened out. He's done at least 30 years of damage to the courts.
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"This has completely changed the understanding of black holes forever. "😲
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Seahawks likely to stay in Seattle after Allen's death, NFL owners say - KOMO News
http://tinyurl.com/y9r7o2tp
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China's Mars orbiter-rover mission on course for 2020 launch window

#mars #exploration #space #tech #engineering #火星 #航天 #中国
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