Do red dwarfs or sunlike stars have more Earth-sized worlds?

Earth is our only example of a habitable planet, so it makes sense to search for Earth-size worlds when we're hunting for potentially-habitable exoplanets. When astronomers found seven of them orbiting a red dwarf star in ...

Even if there's life on TRAPPIST-1, we probably can't detect it

If we ever find life on other worlds, it is unlikely to be a powerful message from space. It's certainly possible that an alien civilization specifically sends us a radio message like a scene out of Contact, but the more ...

Mercury's black disk helps sharpen Solar Orbiter's view

This year started with a nice imaging opportunity for Solar Orbiter, and a chance to further improve the quality of its data. On January 3, 2023, inner planet Mercury crossed the spacecraft's field of view, resulting in a ...

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