Planets 8 Surface Gravity

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comet, planet and Shedding Matter

Astronomers discover doomed planet shedding a Mount Everest's worth of material every orbit, leaving behind a comet-like tail

Scientists have discovered a planet that is literally falling apart as it orbits its star. Located about 140 light-years from Earth in the Pegasus constellation , this doomed world named BD+05 4868 Ab whips around its star once every 30.5 hours — so close that its surface is being scorched into magma and vaporizing into space.

Phys.org on MSN · 1d

Astronomers discover a planet that's rapidly disintegrating, producing a comet-like tail

A planet 140 light-years from Earth is rapidly coming apart due to its close proximity to its star. The roasting planet is effectively evaporating away: It sheds an enormous amount of surface minerals as it whizzes around its star.

Discover Magazine on MSN · 1d

A Disintegrating Planet Is Shedding Matter and Has a Comet-Like Tail

Learn why the planet, BD+05 4868 Ab, is only the fourth such discovered and will disappear in one to two million years.

Could alien life thrive on K2-18b? What to know about the distant exoplanet

K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know ...

NASA’s Quantum Sensor Could Revolutionize Gravity Mapping

NASA and partners are building the first quantum gravity sensor for space, a breakthrough instrument that uses ultra-cold ...

ExtremeTech on MSN1y

What Is Gravity, and How Does It Work?

or perpendicular to the planet's surface) at 9.8 m/s²—that is, an additional 9.8 meters per second, each second.

NASA Wants to Track Earth’s Gravity With a Cloud of Floating Atoms in Space

A suitcase-sized quantum sensor could soon reveal hidden water, oil, and even underground mountains—all by tracking how atoms ...

Earth.com4d

Scientists can map subtle shifts in Earth's gravity using atoms

NASA’s quantum sensor satellite will map gravity shifts to uncover Earth’s hidden resources, changes, and patterns.

Scientific American27d

When Was the First Exoplanet Discovered?

For centuries, humans have wondered if planets exist around other stars ... the stellar corpse has monstrously strong surface gravity. Standing on the surface, a typical human would weigh ...

National Geographic news1y

Planet Mars, explained

With a radius of 2,106 miles, Mars is the seventh largest planet in our solar system and about half the diameter of Earth. Its surface gravity is 37.5 percent of Earth’s. Mars rotates on its ...

BBC4y

Weight, mass and gravity

Since it is a force, weight is measured in Newtons (not kilograms). The force of gravity is different on different planets, so the weight of an object on different planets (or moons) is ...

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