US and World News

Human Fetuses Develop Lizard-Like Body Parts That Disappear Before Birth - Gizmodo
New research this week seems to show that human fetuses develop several muscles in their legs and arms that disappear by the time they’re born. And some of these muscles were last seen in our adult ancestors over 250 million years ago.

An Interstellar Comet, in Time for the Holidays - The New York Times
On Dec. 7, the extrasolar comet now known as 2I/Borisov will make its closest approach to the sun.

NASA fears if they find proof of inhabitants on the planet people may not be mentally prepared - Daily Mail
The Mars 2020 Rover will take humanity one step closer to answering whether there is life on the red planet. NASA's chief scientist worries that humans may not be able to handle the answer.

Astronomers have their best solution yet to the mysterious alien megastructure star - Business Insider
Scientists have a new explanation for Tabby’s Star’s mysterious dimming. Rather than an alien megastructure, a dying icy moon might be to blame.

Scientists estimate Earth's total carbon store - BBC News
There are 1.85 billion, billion tonnes of carbon on Earth, nearly all of it held beneath the surface.

Four Asteroids Are Buzzing Earth in Flybys Today (But Don't Worry) -
Three of them were discovered within the last 24 hours.

Now You Can Listen to Marsquakes - Gizmodo
NASA has turned Marsquake data into sounds you can actually listen to.

NASA awards $43.2M to Blue Origin, SpaceX and others for tech to take us to the Moon and Mars - TechCrunch
NASA has announced the total funding it will distribute to the 14 companies it’s chosen to work with on developing key, innovative technologies that will be instrumental in helping get the agency to the Moon through the Artemis program, and potentially to Mar…

Is Our Solar System's Mysterious 'Planet 9' Really a Grapefruit-Size Black Hole? -
It probably isn't a black hole, if it exists at all. But two physicists think we should check to see if it's a black hole anyway.

A Red Dwarf Star Has a Jupiter-Like Planet. So Massive it Shouldn't Exist, and Yet, There It Is - Universe Today
A planet too large for its star: the discovery of a large gas giant orbiting close to a red dwarf means we have some theories that need work.

NASA launches a new planet-hunting telescope using a giant balloon - TechCrunch
A new telescope will seek out planets that resemble Earth from a height of around 125,000 feet, using special optical technology that will filter out light from the stars they orbit to provide a better view. The telescope is the product of UMass Lowell, and t…

NASA chief says the world may not be ready for Martian life - BGR
NASA’s Mars 2020 mission will attempt to answer a number of questions about the Red Planet, and one of the most pressing is the search for life. Today, Mars is largely barren and dry, but thi…

Physicist suggests orbiting objects are stakeouts for Martian probes to observe Earth - Daily Mail
An American physicist has suggested alien 'lurkers' may have been observing us for millions of years. These Martian-made probes could be hidden on co-orbital objects and watching out every move.

Elon Musk trolls NASA chief with his own sick space burn - CNET
The SpaceX head responds to nagging from NASA's Jim Bridenstine by calling out the space agency's own timelines.

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