New photos of the recently discovered asteroid 2024 MK, which zoomed past Earth in late June, reveal that the massive space ...

Basically, gravity is dependent on mass, where all things – from stars, planets, and galaxies to light and sub-atomic particles – are attracted to one another.Depending on the size, mass and ...

Researchers have described a new, lower size limit for planets to maintain surface liquid water for long periods of time, extending the so-called Habitable or 'Goldilocks'' Zone for small, low ...

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.

Planets’ gravity tidies stellar ring. ... Now, astronomers on the team that published the discovery have revised their estimates of the planet’s size.

Using gravitational microlensing, scientists have discovered a rare, large planet at the edge of the Milky Way. The planet is ...

It’s widely known as a gravitational slingshot, though most scientists refer to it as a gravitational assist, and it’s an ...

The discovery of the exoplanet, a super-Earth called Kepler-735c, is all down to something called transit timing variations, ...

In this feature, find out how a planet acquires-and retains-an atmosphere, and why only four planets or moons with solid bodies in our solar system have one. How to Get an Atmosphere by Peter Tyson ...

Callisto and Titan—planet-size moons of Jupiter and Saturn, respectively—are nearly the same size, ... As the lightest gas, hydrogen is the one that most easily overcomes a planet’s gravity.

Harvard University researchers described a new, lower size limit for planets to maintain surface liquid water for long periods of time, extending the so-called Habitable or 'Goldilocks'' Zone for ...