Blog Archives

Planetary geologist joins extended OSIRIS-REx mission to visit another asteroid

Because of their potential to deepen our understanding of the solar system and beyond, NASA this week extended the missions of eight of its spacecraft, including OSIRIS-REx-and Northern Arizona University planetary geologist Chris Haberle will be one of the scientists involved in the newly extended project.

OSIRIS-REx (Origins,

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China developing means of saving Earth from asteroids – report

Currently, the only asteroid defense project to have truly gotten off the ground is the Double Asteroid Redirection Test (DART) Mission, an initiative developed by NASA and John Hopkins University.

China is planning a new initiative to combat the threat of a potential asteroid impact on Earth, Chinese Defense Minister Wu Yanhua said Sunday morning,

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Hubble confirms largest comet nucleus ever seen

NASA’s Hubble Space Telescope has determined the size of the largest icy comet nucleus ever seen by astronomers. The estimated diameter is approximately 80 miles across, making it larger than the state of Rhode Island. The nucleus is about 50 times larger than found at the heart of most known comets.

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Characteristics of Apophis, the asteroid that will approach Earth in 2029

The study, in which the Universidad Carlos III de Madrid (UC3M) and the Universidad Estatal Paulista Julio de Mesquita Filho (Julio de Mesquita Filho Paulista State University) (UNESP) of Brazil are participating, analyses the surface and dynamics of Apophis, an asteroid that will pass close to Earth in 2029.

The Apophis asteroid was discovered in 2004 and has been monitored since then due to its classification as a potentially hazardous asteroid (PHA),

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Ryugu could be a remnant of an extinct comet

Asteroids hold many clues about the formation and evolution of planets and their satellites. Understanding their history can, therefore, reveal much about our solar system. While observations made from a distance using electromagnetic waves and telescopes are useful, analyzing samples retrieved from asteroids can yield much more detail about their characteristics and how they may have formed.

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Fifth asteroid ever discovered before impact

At 19:24 UTC on 11 March 2022, astronomer Krisztian Sarneczky discovered a bright and fast-moving new object in the sky using the 60cm Schmidt telescope at the Piszkesteto observatory, Hungary. He collected four observations in quick succession, and just 14 minutes later reported his findings to the Minor Planet Center (MPC),

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NASA System Predicts Impact of Small Asteroid

Asteroid 2022 EB5 was too small to pose a hazard to Earth, but its discovery marks the fifth time that any asteroid has been observed before impacting into the atmosphere.

A small asteroid hit Earth’s atmosphere over the Norwegian Sea before disintegrating on March 11, 2022. But this event wasn’t a complete surprise: Astronomers knew it was on a collision course,

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The state of planetary defense in the 2020s

The Earth exists in a dangerous environment. Cosmic bodies, like asteroids and comets, are constantly zooming through space and often crash into our planet. Most of these are too small to pose a threat, but some can be cause for concern.

As a scholar who studies space and international security,

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Youngest pair of asteroids in solar system detected

An international team of astronomers has discovered a pair of asteroids that split off from their parent body a mere 300 years ago. The duo is exceptional because it is the youngest known “asteroid pair” by at least a factor of ten, it passes close to Earth’s orbit, and it has properties that are hard to explain given its young age.

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Astronomers create new global force to stop Elon Musk’s internet satellites hiding killer asteroids

Megaconstellations are corrupting astronomers’ view of space and could impact planetary defences against incoming space debris

A union of astronomers is taking action to protect the study of the night sky from the effects of the thousands of satellites launched by companies such as SpaceX.

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