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ScienceDaily: Space & Time News |
| What a Martian meteorite can teach us about Earth's origins Posted: 12 Jul 2022 04:05 PM PDT What do Mars and Iceland have in common? These days, not so much. But more than 4.5 billion years ago, it's possible the Red Planet had a crust comparable to Iceland today. This discovery, hidden in the oldest martian fragments found on Earth, could provide information about our planet that was lost over billions of years of geological movement and could help explain why the Earth developed into a planet that sustains a broad diversity of life and Mars did not. |
| Space rocket junk could have deadly consequences unless governments act Posted: 12 Jul 2022 11:13 AM PDT The re-entry of abandoned stages of rockets left in orbit from space launches have a six to 10 per cent chance of severely injuring or killing a human being in the next decade, according to a new study. Researchers say governments need to take collective action and mandate that rocket stages are guided safely back to Earth after their use, which could increase the cost of a launch, but potentially save lives. |
| NASA Reveals Webb Telescope's first images of unseen universe Posted: 12 Jul 2022 08:48 AM PDT NASA has revealed groundbreaking new views of the cosmos from the James Webb Space Telescope. The images include the deepest infrared view of our universe that has ever been taken. |
| Web archive with astronomical photographic plates goes online Posted: 12 Jul 2022 07:27 AM PDT Researchers have digitized historical photographic plates showing negatives of the night sky and published the images online. After a total of 10 years, the project has now been completed successfully. |
| Undead planets: The unusual conditions of the first exoplanet detection Posted: 12 Jul 2022 07:27 AM PDT The first ever exoplanets were discovered 30 years ago around a rapidly rotating star, called a pulsar. Now, astronomers have revealed that these planets may be incredibly rare. |
| Researchers remeasure gravitational constant Posted: 12 Jul 2022 07:27 AM PDT Researchers have redetermined the gravitational constant G using a new measurement technique. Although there is still a large degree of uncertainty regarding this value, the new method offers great potential for testing one of the most fundamental laws of nature. |
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