As Earthlings, most of us don’t spend a lot of extra time thinking about the gravity on our home planet. Instead, we go about our days only occasionally dropping things or tripping over furniture but ...

When we study Astronomy and gravity beyond Earth and orbits, I’m limited on hands-on activities. Teachers do some heavy lifting, but I don’t think any of us can move a planet. “I can’t bring Jupiter ...

From ancient Greek philosopher Plato to Neo, hero of the dystopian film fantasy The Matrix, humans have long pondered the true nature of reality. Can we trust what we see, taste, touch, smell, and ...

Wait, where are the GlowScript tutorials 1-7? Yes, I am sort of skipping around. I put the first GlowScript tutorials on a different server, but I figure it's best just to keep everything in one place ...

What if gravity were informed by the way matter was arranged in the universe — and a sign that we were living in a reality composed by a giant computer? In a new paper published in the journal AIP ...

We all know gravity as the invisible force that keeps us grounded. But what if it's not a force at all? What if it's a function? One physicist believes gravity might actually be one of the strongest ...

Many maps of the solar system make it look as though everything in space moves in perfect, concentric circles. Planets orbit the sun, and moons orbit the planets. So that must be the case for ...

We have long taken it for granted that gravity is one of the basic forces of nature—one of the invisible threads that keeps the universe stitched together. But suppose that this is not true. Suppose ...

A nearby binary star system is bereft of giant planets, but scientists think it may still be a decent place to look for life.

DENVER — Small but rowdy space rocks pushing and jostling one another may have created the unusual orbits some astronomers cite as the signature of the hypothesized "Planet Nine," a new study suggests ...