Scientists have discovered an Earth-sized planet orbiting a red dwarf star just 100 light-years from Earth. The planet, called Ross 128 b, is the closest potentially habitable exoplanet yet discovered.

Ross 128 b is located in the constellation Virgo. It is about the same size as Earth and has a mass about 1.3 times that of Earth. The planet orbits its star every 9.9 days and receives about the same amount of light from its star as Earth does from the Sun.

Ross 128 b is thought to be rocky, like Earth. It is also thought to have a thin atmosphere, which could help to trap heat and keep the planet's surface warm enough for liquid water to exist.

The discovery of Ross 128 b is exciting because it is the closest potentially habitable exoplanet yet discovered. This means that it is a good candidate for future study, which could help us to learn more about the conditions necessary for life.

Scientists are planning to use telescopes to study Ross 128 b in more detail. They want to learn more about its atmosphere, surface temperature, and是否有水。

The discovery of Ross 128 b is a reminder that there are many potentially habitable planets in the universe. This gives us hope that we may one day find life beyond Earth.

Here are some additional facts about Ross 128 b:

* It is about 10 billion years old.

* Its star, Ross 128, is a red dwarf star. Red dwarf stars are smaller and cooler than the Sun.

* Ross 128 b is located in the habitable zone of its star. The habitable zone is the region around a star where liquid water could exist on the surface of a planet.

* Scientists think that Ross 128 b may have a thin atmosphere, which could help to trap heat and keep the planet's surface warm enough for liquid water to exist.

* Ross 128 b is a promising candidate for future study. Scientists hope to learn more about its atmosphere, surface temperature, and是否有水。