According to international researchers who analysed material from the Hubble Space Telescope.
The team found that natural cosmic dust grains – or micrometeoroids – up to one-third of a millimetre in diameter, are responsible for 90% of the largest impacts over the last 15 years, compared to relatively few impacts by artificial debris.
These insights could help engineers predict dangers and design spacecraft able to withstand micrometeroid impacts as we venture beyond Earth and lunar orbit.
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It’s the end of the third week of March 2025. Here’s the science and space headlines from the week that was… Kanyini phones home, shows
Astronauts often experience immune dysfunction, skin rashes, and other inflammatory conditions while travelling in space, and international researchers believe these issues are likely due to the overly sterile nature of the International Space Station.
Australia’s first state government funded satellite, Kanyini, has delivered its first images from space, marking a significant milestone for the space mission. Mission Director Peter
Data from NASA’s InSight mission suggest Mars has a liquid core similar to Earth’s, but European scientists say the core may be solid, at least below a certain temperature.
Scientists have successfully used lasers to identify microbe fossils in rocks from Earth, which are like the rocks found on Mars, opening up the possibility of searching for fossils on the Red Planet.
International scientists, including an Australian, say they’ve found evidence of the highest-energy neutrino detected to date. The result suggests the particle came from beyond our Milky Way, they say, although its precise origin remains mysterious.
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