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Submission + - Tatooine was likely orbiting in the same plane as its twin suns

The Bad Astronomer writes: A new study by astronomers of binary stars shows that exoplanets orbiting them (circumbinary planets) will orbit in the same plane as the stars if the two stars are relatively close together. If the stars are farther apart, the planets may have a perpendicular (polar) orbit around them. This study looked at the protoplanetary disks of dust and gas around binaries to draw this conclusion. Extrapolating to fiction, this means Tatooine in Star Wars was coplanar with its host stars.

Submission + - Remember that 70-solar-mass black hole announced last week? Yeah, not so much.

The Bad Astronomer writes: Last week, scientists announced the discovery of a stellar-mass black hole with 70 times the Sun's mass, far heftier than theory predicts they can get. Within days, though, four separate papers have come out casting extreme doubt on the claim. They show that the data weren't processed correctly, and that the black hole is closer to Earth than first assumed, which changes the calculations and makes it a more normal 5 — 20 solar mass object.

Submission + - Nearby star is Sun's long-lost sibling

The Bad Astronomer writes: A nearby star, HD 186302, was almost certainly born from the same cloud of gas the Sun was 4.6 billion years ago. Astronomers have found it has an almost identical chemical composition as the Sun, is on a similar orbit around the Milky Way, and has the same age (within uncertainties). Interestingly, it's only 184 light years away, implying statistically many more such stars are waiting to be discovered.

Submission + - Supermassive black hole rocketing out of distant galaxy at 5 million mph

The Bad Astronomer writes: Astronomers have found a supermassive black hole barreling out of its home galaxy at 5 million mph. The 3 billion solar mass behemoth formed from the merger of two slightly smaller black holes after two galaxies collided and themselves merged. The resulting blast of gravitational waves is thought to have been asymmetric, causing a rocket effect which launched the resulting black hole away. It's currently 40,000 light years from the galaxy's core.

Comment Re:Sphagetti code (Score 2) 93

Are you kidding? Considering that god wrote a program that is self-modifying, evolutionary, infinitely adaptable, and capable of self-reflection and consciousness from a few basic parameters that started the size of an infinitesimal speck containing all the energy in the universe... I would say god is an uncomprehendingly amazing coder!

Comment Re:Gun-free zone? (Score 1) 1165

Why not just make safe gun use and storage one of the first required classes? Rather than try and ban something that isn't going away, teach safe use and respect for guns and life.

May I ask, when does the right to bear arms become the requirement to bear arms? Is firearm possession so prevalent that gun safety and training needs to be a required course in college?

I understand you were likely making the statement tongue-in-cheek, but how would you allow for students who wanted to opt out? What about those students whose religious beliefs would be violated because they belong to a pacifist or non-resistant religion? Frankly I would not use a firearm if my life depended on it, and my family has emigrated numerous times over the course of centuries to avoid persecution by religious groups and governments that wished to compel military service.

The culture and rhetoric around US citizen firearm rights and mass violence has long since passed into the realm of ridiculousness.

Comment Re:Not a "Design Flaw"/a Testing Flaw (Score 2) 157

It is a design flaw, but you are correct that it is also a testing failure.

It is a simple use case that should have been discovered during testing and addressed - but that does not take away from the fact it was a design flaw in the first place. It's a chain of errors that resulted in this problem being present in production.

Submission + - Earth Gets Another Quasi-Moon 1

The Bad Astronomer writes: Astronomers have found a new asteroid, 2014 OL339, that is a quasi-moon of the Earth. Discovered accidentally earlier this year, the 150-meter asteroid has an orbit that is more elliptical than Earth's, but has a period of almost exactly one year. It isn't bound to Earth like a real moon, but displays apparent motion as if it did, making it one of several known quasi-moons.

Submission + - New Mars crater spotted in before-and-after pictures

The Bad Astronomer writes: The Mars Reconnaissance Orbiter spotted a new crater on the surface of Mars, and, using before-and-after pictures, the impact date has been nailed down to less than a day — it happened on or about March 27, 2012. The crater is 50 meters or so in size, and surrounded by smaller craters that may have been caused by smaller impacts due to the incoming meteoroid breaking up. Several landslides were spotted in the area as well, possibly due to the shock wave of the impact.

Submission + - Astronomers determine the length of day of an exoplanet

The Bad Astronomer writes: Astronomers have just announced that the exoplanet Beta Pic b — a 10-Jupiter-mass world 60 light years away -— rotates in about 8 hours. Using a high-resolution spectrometer and exploiting the Doppler shift of light seen as the planet spins, they measured its rotation velocity as 28,000 mph. Making reasonable assumptions about the planet's size, that gives the length of its day. This is the first time such a measurement has been achieved for an exoplanet.

Comment Re:Ummm, probably not (Score 1) 142

That analysis was done here: http://norskmeteornettverk.no/... (it's not in English, but google translate does a decent job). He makes a distance estimate based on speed, which itself is based on the assumption it's a falling rock at terminal velocity. But the distance, speed, and time it takes to cross the FOV are related, and if you make a stab at speed you can get distance and vice versa.

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