Category Astronomy/Space

Asteroid Findings from Specks of Space Dust could Save the Planet

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Curtin University-led research into the durability and age of an ancient asteroid made of rocky rubble and dust, revealed significant findings that could contribute to potentially saving the planet if one ever hurtled toward Earth.

The international team studied three tiny dust particles collected from the surface of ancient 500-metre-long rubble pile asteroid, Itokawa, returned to Earth by the Japanese Space Agency’s Hayabusa 1 probe.

The study’s results showed asteroid Itokawa, which is 2 million kilometres from Earth and around the size of Sydney Harbour Bridge, was hard to destroy and resistant to collision.

Lead author Professor Fred Jourdan, Director of the Western Australian Argon Isotope Facility, part of the John de Laeter Centre and the School of Earth and Plane...

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Darkest View Ever of Interstellar Ices

Telescope view of ices in interstellar clouds
Courtesy of NASA/ESA/CSA/M. Zamani (ESA/Webb)/M. K. McClure (Leiden Observatory)/F. Sun (Steward Observatory)/Z. Smith (Open University)/Ice Age ERS Team An international team, including Research Scientist Dr. Danna Qasim from Southwest Research Institute, used the James Webb Space Telescope to achieve the darkest and deepest view of ices in interstellar clouds.

An international team including Southwest Research Institute, Leiden University and NASA used observations from the James Webb Space Telescope (JWST) to achieve the darkest ever view of a dense interstellar cloud...

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How was the Solar System Formed? The Ryugu Asteroid is helping us learn

Japan Aerospace Exploration Agency (JAXA)

Our solar system is estimated to be about 4.57 billion years old. Previous analyses of ancient meteorites have shown that minerals were created through chemical reactions with water as far back as 4.5 billion years ago. New findings from the Ryugu asteroid samples indicate that carbonates were forming from water-rock reactions several million years earlier, even closer to the solar system’s beginnings.

Mineral samples collected from the Ryugu asteroid by the Japan’s Hayabusa2 spacecraft are helping UCLA space scientists and colleagues better understand the chemical composition of our solar system as it existed in its infancy, more than 4.5 billion years ago.

In research recently published in Nature Astronomy, scientists using isotopic ana...

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Tumultuous Migration on the Edge of the Hot Neptune Desert

Did hot Neptunes ever exist? While astronomers observe gas giants and small rocky planets close to their stars, the SPICE DUNE project is investigating the ‘‘desert’’ of Neptune-sized planets. Â© Elsa Bersier – CFPArts / ESBDi Genève

All kinds of exoplanets orbit very close to their star. Some look like the Earth, others like Jupiter. Very few, however, are similar to Neptune. Why this anomaly in the distribution of exoplanets? Researchers from the University of Geneva (UNIGE) and the National Centre of Competence in Research (NCCR) PlanetS have observed a sample of planets located at the edge of this Hot Neptune Desert to understand its creation...

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