Question

The Transiting Exoplanet Survey Satellite (TESS) of NASA has recently discovered a new planet. Which planet has been discovered?

Answer 1

The planet, named HD 21749b appears to have the longest orbital period of the three planets so far identified by TESS

Answer 2

Answer:

The Transiting Exoplanet Survey Satellite (TESS) of NASA has recently discovered an Earth-sized planet, HD 21749b.

Explanation:

TESS was launched to Earth orbit in April 2018 on a SpaceX Falcon 9 rocket. Transiting Exoplanet Survey Satellite (TESS), NASA's latest planet-hunting probe, has discovered a new world outside our solar system, orbiting a dwarf star 53 light years away.

This is the third new planet confirmed by TESS since its launch in April 2018.

HD 21749b is about 23 times heavier and 2.7 times wider than Earth. It is gaseous, has a substantial atmosphere but not as enlarged as Uranus and Neptune.