Tag: Asteroids
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New study provides explanation behind origins of Martian moons Phobos and Deimos
Using supercomputer simulations, a team of NASA scientists recently modeled the destruction of an asteroid around Mars to investigate the possible origins of Mars’ two, mysterious moons — Phobos and Deimos. Since their discovery in 1877 and subsequent investigations by telescopes and Martian spacecraft, scientists have pondered how the two moons came to be, and…
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NASA shuts down asteroid-hunting telescope, but a better one is on the way
Last week, NASA decommissioned a nearly 15-year-old spacecraft that discovered 400 near-Earth asteroids and comets, closing an important chapter in the agency’s planetary defense program. From its position in low-Earth orbit, the spacecraft’s infrared telescope scanned the entire sky 23 times and captured millions of images, initially searching for infrared emissions from galaxies, stars, and…
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NASA shuts down asteroid-hunting telescope, but a better one is on the way
Last week, NASA decommissioned a nearly 15-year-old spacecraft that discovered 400 near-Earth asteroids and comets, closing an important chapter in the agency’s planetary defense program. From its position in low-Earth orbit, the spacecraft’s infrared telescope scanned the entire sky 23 times and captured millions of images, initially searching for infrared emissions from galaxies, stars, and…
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Smashing into an asteroid shows researchers how to better protect Earth
On a fall evening in 2022, scientists at the Johns Hopkins University Applied Physics Laboratory were busy with the final stages of a planetary defense mission. As Andy Rivkin, one of the team leaders, was getting ready to appear in NASA’s live broadcast of the experiment, a colleague posted a photo of a pair of…
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Hayabusa2 samples reveal the effects of space weathering on asteroid Ryugu
Using samples collected by Japan Aerospace Exploration Agency’s (JAXA) asteroid explorer Hayabusa2, scientists have found the effects of micrometeoroid bombardments on asteroid 162173 Ryugu. The team used a technique called electron holography to study the sample’s magnetic properties, to learn about the magnetic field in the early solar system, and how space weathering affected the…
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Asteroid hunters say they’ve found 27,500 new prospects in search for space rocks
This visualization shows the solar system trajectories of asteroids discovered by ADAM and THOR. (Credit: B612 Asteroid Institute / Univ. of Wash. DiRAC Institute / OpenSpace Project) A team of asteroid hunters that includes researchers at the University of Washington says it has identified 27,500 new, high-confidence asteroid discovery candidates — not by making fresh…
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Weather delays launch of NASA’s billion-dollar Psyche mission to Friday
Update 6:35 p.m. EDT: NASA delays launch to Friday due to weather. The eighth Falcon Heavy to fly was raised to launch configuration overnight on Wednesday as it prepares to send the Psyche spacecraft off to the asteroid of the same name as early as Thursday, Oct. 12, 2023. Image: Adam Bernstein Original story: With…
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Simple settings tweak should save Psyche asteroid mission from overheating thrusters
An artist’s conception of the Psyche spacecraft orbiting near the surface of the Psyche asteroid. Image: Maxar/ASU/Peter Rubin. NASA’s Psyche spacecraft, now scheduled for launch on Oct. 12, will dial down the power of its maneuvering system after engineers discovered its thrusters were in danger of overheating during its eight-year expedition to explore a metallic…
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NASA’s OSIRIS-REx probe delivers sample of asteroid — and moves on to next target
Lockheed Martin system safety engineer Victoria Theim checks out the OSIRIS-REx sample return capsule after its Utah desert landing. (NASA Photo / Keegan Barber) Seven years and 4 billion miles after its launch, NASA’s OSIRIS-REx spacecraft has successfully dropped off a capsule containing a precious sample of one near-Earth asteroid — and is now on…
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Scientists successfully test algorithm for identifying potentially hazardous asteroids
A bird’s-eye view of the solar system shows the orbital path for Earth in blue and the projected orbit for the asteroid known as 2022 SF289 at its closest approach in green. Orbits of Venus and Mars are shown in orange and red. (Credit: Joachim Moeyens / University of Washington / OpenSpace) A new technique…