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It's Looking More and More Likely That We Live in a Multiverse

Could our massive universe be just one of many, like a bubble in a frothy stream of cosmos-spawning stuff? It sounds like something out of a 1970s British scifi novel, but it's become a popular explanation for the origin of our universe. But how can we test this hypothesis, when we're stuck in just one universe?

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It’s Looking More and More Likely That We Live in a Multiverse

Could our massive universe be just one of many, like a bubble in a frothy stream of cosmos-spawning stuff? It sounds like something out of a 1970s British scifi novel, but it's become a popular explanation for the origin of our universe. But how can we test this hypothesis, when we're stuck in just one universe?

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8 Things We Can Do Now to Build a Space Colony This Century

Before humans start living in space on a regular basis, there's a lot of basic science and political agendas that need to advance. We talked to scientists and experts about the fundamental things they think we should do right now, if we want to have a space colony in the next 100 years.

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Newly Announced Super-Earth May Be The Closest Exoplanet Discovered Yet

Gliese15Ab is a newly discovered planet roughly five times the mass of Earth. Researchers aren't sure what the planet's atmosphere is like, and it's close enough to its parent star to heat it past the boiling point of water. But the most interesting thing about Gliese 15Ab isn't how close it is to its star. It's how close it is to us.

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What Lit Up The Universe? Astronomers May Be On The Brink Of An Answer

Most scientists can see, hear, smell, touch or even taste their research. But astronomers can only study light – photons traveling billions of light-years across the cosmos before getting scooped up by an array of radio dishes or a single parabolic mirror orbiting the Earth.

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How Will Humans Get to Alpha Centauri?

Astronomers have discovered an Earth-sized exoplanet orbiting a star in Alpha Centauri, just 4.3 light-years from Earth. With surface temperatures in excess of 2,000 degrees fahrenheit, this particular planet would be inhospitable, but the fact that it exists at all raises hopes of finding another, more human-friendly planet within the same star system.

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Are We About to Cross the Blood-Brain Barrier, and Transform Medicine?

One of the greatest frustrations for doctors dealing with brain tumors is called the blood brain barrier (BBB). It's the defense our bodies have created to keep toxins from passing from our blood into our brains – but it also stops medicines from making the crossing too. Now that may be about to change.