In a groundbreaking discovery, astronomers have identified TOI-1846 b, a super-Earth exoplanet located 154 light-years away.

“HD 20794 d is not a second home for humanity, but its position and peculiar orbit give us a unique opportunity to study how the conditions for habitability vary over time and how these ...

Earth" that is located about 154 light-years away and is nearly twice as big and four times as massive as our planet.

2025年初，牛津大学团队确认了超地球HD 20794 d，这颗“超级类地行星”，其信号首次被捕捉于2022年。它绕一颗类太阳G型恒星运行，距地球仅20光年，质量约为地球的6倍，处于宜居带内，可能具备液态水条件。

Astronomers have found a new exoplanet named TOI-1846 b. This planet is nearly twice the size of Earth. It may contain a lot ...

与此同时，今年早些时候，研究人员在太阳系外发现了另一颗“超级地球”。据牛津大学的研究结果，这颗被命名为HD 20794 d的系外行星质量是地球的六倍，其表面可能存在液态水。它距离地球20光年，在一颗类似太阳的恒星的宜居带内运行。

这颗新发现的行星被命名为HD 20794 d，质量是地球的6倍，距离地球约20光年，围绕一颗类似太阳的恒星运行。 它的轨道位于该星系的宜居带内，这意味着它与恒星的距离合适，其表面能维持液态水存在，液态水是生命所需的一种关键成分。

Scientists have discovered a water-rich "super-Earth" named TOI-1846 b, which is twice the size and over four times the mass of Earth.