ScienceDaily: Strange Science News |
- Affordable housing in outer space: Scientists develop cosmic concrete from space dust and astronaut blood
- Astronomers spot the same supernova three times — and predict a fourth sighting in 16 years
- Scientists make sperm from mouse pluripotent stem cells that lead to healthy, fertile offspring
| Posted: 13 Sep 2021 10:57 AM PDT Transporting a single brick to Mars can cost more than a million British pounds -- making the future construction of a Martian colony seem prohibitively expensive. Scientists have now developed a way to potentially overcome this problem, by creating a concrete-like material made of extra-terrestrial dust along with the blood, sweat and tears of astronauts. |
| Astronomers spot the same supernova three times — and predict a fourth sighting in 16 years Posted: 13 Sep 2021 10:56 AM PDT An enormous amount of gravity from a cluster of distant galaxies causes space to curve so much that light from them is bent and emanated our way from numerous directions. This 'gravitational lensing' effect has allowed astronomers to observe the same exploding star in three different places in the heavens. They predict that a fourth image of the same explosion will appear in the sky by 2037. The study provides a unique opportunity to explore not just the supernova itself, but the expansion of our universe. |
| Scientists make sperm from mouse pluripotent stem cells that lead to healthy, fertile offspring Posted: 07 Sep 2021 08:49 AM PDT For species that rely on sexual reproduction, including mice and men, offspring can only happen if sperm from the male fertilize eggs from the female. Even artificial fertilization techniques depend on donors for both of these cells. However, a new study shows that mouse pluripotent stem cells can differentiate into functional sperm. These sperm were successfully used to produce healthy, fertile offspring and provide the most comprehensive model yet for generating male germ cells in a test tube. |
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