An artist’s rendering of Proxima d, a third planet found orbiting red dwarf star Proxima Centauri. Credit: ESO/L. Calçada
Proxima Centauri, the star closest to our Sun, may host a third planet that has just 25% the mass of Earth, according to a new study published in the journal Astronomy and Astrophysics .
Quite a lot has been happening:
Orbiting robots could help fix and fuel satellites in space | Ars Technica
For more than 20 years, the Landsat 7 satellite circled Earth every 99 minutes or so, capturing images of almost all the planet's surface each 16 days.
Now, though, NASA has a potential fix for such enfeebled satellites. In a few years, the agency plans to launch a robot into orbit and maneuver it to within grabbing distance of Landsat 7. The robot will use a mechanical arm to catch hold of it and refuel it, mid-air.
Proxima d: New planet discovered orbiting nearest star to so... | MENAFN.COM
A tug on binary stars reveals the mass of the Tatooine-like planet Kepler-16b
Those are fictional gas giants orbiting the binary suns Tatoo I and II in Star Wars , the stars made famous by Luke Skywalker wistfully watching them set as the desert wind blew through his 1970s hair.
Artwork depicting an exoplanet transiting one of two stars in a binary system. Photo: PSI / Pamela Gay
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