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Why science says having a younger sibling can be really good for you

Despite all the aggravation.

Anyone with a younger brother or sister knows it’s not always an easy ride (unless you happen to be very fortunate), but a new study suggests there could be real, tangible health benefits to having a younger sibling. Researchers have linked having a little brother or sister to a lower risk of obesity in a comparison of the body mass indexes (BMIs) of 697 children in the US.

The University of Michigan team found that the birth of a sibling between the ages of two and four was associated with a healthy BMI, while those without a sibling by the first grade (age six) were almost three times more likely to be obese at that age. Those are quite dramatic findings, but the researchers behind them aren’t entirely sure why such a link exists.

“This study is believed to be the first to track subsequent increases in BMI after a child becomes a big brother or sister,” said senior author Julie Lumeng. “Research suggests that having younger siblings - compared with having older or no siblings - is associated with a lower risk of being overweight. However, we have very little information about how the birth of a sibling may shape obesity risk during childhood.”

Inhabitat’s Week in Green: Tesla Model S recall, and more!

A man in Sweden accidentally captured this image of a green meteorite while taking pictures of the Northern lights.

Almost a month ago, the spaceflight company Blue Origin sent a rocket up to the edge of space and then guided it gracefully back down to earth, intact. It was a historic first.

But Blue Origin’s major competitor, SpaceX, was quick to point out that the rocket wasn’t going fast enough (or sideways enough) to place a satellite into orbit - just 4,600 kph (~2,860 mph). It went straight up, and then straight down.

Now, SpaceX has managed to put 11 satellites in orbit with a “reusable” rocket. Their rocket didn’t just go up and down - it reached a horizontal velocity of 6,000 kph (3,600 mph) before returning to earth. If SpaceX is able to refurbish the rocket and use it in another launch, they’ll have figured out a way to dramatically reduce the cost of spaceflight.

Here’s the full webcast. And here’s the full story.

Video credit: SpaceX

Prototype Robotic Lunar Lander, Testing at Marshall Space Flight Center

Source: http://www.nasa.gov/images/content/388176main_0901812_full.jpg

This Year in Space (infographic)

From Pluto to the most Earth-like planet ever discovered…this years was a fantastic year in space. Here are the most notable astronomical events from 2015.

May you all journey well into 2016.

See all our infographics at: http://futurism.com/infographics/

7 Technologies Super Soldiers Will Be Using in Future Warfare

Read more at: http://futurism.com/images/

http://futurism.com/images/7-technologies-super-soldiers-will-be-using-in-future-warfare/

Why you should always buy the men’s version of almost anything

It's a good principle to live by, based on this new discovery.

The New York City Department of Consumer Affairs compared nearly 800 products with female and male versions — meaning they were practically identical except for the gender-specific packaging — and uncovered a persistent surcharge for one of the sexes. Controlling for quality, items marketed to girls and women cost an average 7 percent more than similar products aimed at boys and men.

Finland Explores Offering a Universal Basic Income to its Citizens

The Finnish Social Insurance Institution is preparing a proposal that would provide a tax free universal basic income of €800 per month to every Finnish citizen. Read more at: http://futurism.com/links/finland-explores-offering-a-universal-basic-income-to-its-citizens/

Tesla’s cheapest Model X is priced at $80,000