C. Moutou

The red dwarf Gliese 725 B lies just 3.5 light-years away — by cosmic standards, a neighbor next door. Such stars are small and dim, so planets around them are easier to spot: the star wobbles more noticeably under their gravitational pull. But Earth's own atmosphere gets in the way of detecting that wobble.

Planet HIP 67522 b is quite young: it's only 17 million years old, compared to Earth's 4.5 billion. It's a hot Jupiter — a gas giant that orbits very close to its star, so its atmosphere is heated and puffed up.