Search results for asteroid belt

Astronomy Oct 4, 2021

Is new finding an asteroid or a comet? It's both

The newest known example of a rare type of object in the Solar System—a comet hidden among the main-belt asteroids—has been found and studied, according to a new paper by Planetary Science Institute Senior Scientist Henry ...

Astronomy Oct 4, 2021

Simulations suggest an Earth or Mars size planet may be lurking out beyond Neptune

A team of space scientists has published a paper in Annual Review of Astronomy and Astrophysics suggesting that there may be an Earth- or Mars-sized planet orbiting beyond Neptune. They further suggest that simulations of ...

Space Exploration Oct 1, 2021

'Mini psyches' give insights into mysterious metal-rich near-Earth asteroids

Metal-rich near-Earth asteroids, or NEAs, are rare, but their presence provides the intriguing possibility that iron, nickel and cobalt could someday be mined for use on Earth or in Space.

Space Exploration Sep 29, 2021

NASA's Lucy mission to probe Jupiter's mysterious Trojan asteroids

NASA is poised to send its first spacecraft to study Jupiter's Trojan asteroids to glean new insights into the solar system's formation 4.5 billion years ago, the space agency said Tuesday.

Space Exploration Sep 20, 2021

Solar electric propulsion makes NASA's Psyche spacecraft go

When it comes time for NASA's Psyche spacecraft to power itself through deep space, it'll be more brain than brawn that does the work. Once the stuff of science fiction, the efficient and quiet power of electric propulsion ...

Astronomy Sep 9, 2021

ESO captures best images yet of peculiar "dog-bone" asteroid

Using the European Southern Observatory's Very Large Telescope (ESO's VLT), a team of astronomers have obtained the sharpest and most detailed images yet of the asteroid Kleopatra. The observations have allowed the team to ...

General Physics Sep 6, 2021

Physics model explains the overall shape of two rubble-pile asteroids

Scientists from the Okinawa Institute of Science and Technology Graduate University (OIST) and Rutgers University have used simple concepts from granular physics to explain the curious diamond shapes of two "near Earth" asteroids.

Astronomy Sep 1, 2021

The case of the missing mantle: How impact debris may have disappeared from the solar system

In the early solar system, terrestrial planets like Mercury, Venus, Earth and Mars are thought to have formed from planetesimals, small early planets. These early planets grew over time, through collisions and mergers, to ...

Astronomy Sep 1, 2021

What young stars teach us about the birth of our solar system

The familiar star at the center of our solar system has had billions of years to mature and ultimately provide life-giving energy to us here on Earth. But a very long time ago, our sun was just a growing baby star. What did ...

Astronomy Aug 31, 2021

Geologists propose theory about a famous asteroid

The asteroid Vesta is the second largest asteroid in our Solar System. With a diameter of about 330 miles, it orbits the sun between the planets Mars and Jupiter.

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