Rebecca Beltrán

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LHC Measurements Hint at Entirely New Physics Just Outside Our Reach

More tests are needed, though.<p>During the mid- to late-twentieth century, quantum physicists picked apart the unified theory of physics that …

Ask Ethan: What Is Spacetime?

It’s the most fundamental fabric of the Universe itself. But how does it work?<p><i>“‘Space-time’ — that hideous hybrid whose very hyphen looks phoney.” …

If Planet Nine Is Out There, It Tilts Our Solar System

Most people think the eight planets in our solar system orbit the sun along a straight plane, like a disc on a record player. But actually, that plane is slightly tilted, and now astronomers think they know why: The elusive Planet Nine.<p>Earlier this year Michael Brown, a professor of planetary …

Earth - The first planet ever discovered around another star

On a winter's night in January 1995, rain fell on the Haute-Provence Observatory in southern France. Didier Queloz, an astronomy graduate student, was supposed to be observing. But since the weather was not cooperating, he sat in the library, writing computer code to make sense of the data he had …

Exoplanets

Ask Ethan: How can we see all the way back to the Big Bang?

If we can’t even witness the birth of our Solar System and planet, how can we claim to see the birth of the Universe?<p><i>“There have to be moments when</i> …

Where Is the Rest of the Universe?

Most of the universe is made up of "stuff" that is invisible, possibly intangible and interacts with other things only via the force of gravity. Oh, …

Dark Matter

Another One of Saturn's Moons May Have a Global Ocean

The evidence is mounting that our solar system is rife with oceans. Last week, scientists reported that Pluto could have an insanely deep liquid …