|Type||Scientific astrometric space observatory|
|Start||19. 12. 2013 (Soyuz ST-B)|
|9. 1. 2014 | Orbit insertion | L2|
|Last update: 19. 11. 2022|
European space observatory Gaia measures precise positions of stars in our galaxy, however it can also look for exoplanets. Scientists now report confirmation of two exoplanets discovered by the spacecraft.
New list of pairs of gravitationaly unbound stars in our neighborhood might present a new set of interesting targets for those who look for advanced civilisations. When two stars come close to each other, the advanced enough civilisation might take an advantage and migrate from one system to the other. In new study a list is presented of best candidate stars.
White dwarf is a dense core of dead star. Most of them have similar mass to the Sun, but sometimes astronomers find one so light, that it should not exist. The most accepted theory was, that the extremely low-mass white dwarfs (ELM) are created when a massive star nearby sucks away some of their mass. Astronomers now found a system where this is happening. And not just one.