Highlights

Transiting Exoplanet Survey Satellite NASA’s planet hunter has found 66 new Exo planets. TESS scanned about 75 per cent of the starry sky during its mission.

The NASA’s TESS monitors monitored the sky for about a month using four cameras. The mission has been extended till September 2022. The mission is to further explore along the ecliptic orbit plane of the earth around the sun.

Transiting Exoplanet Survey Satellite

TESS is a space telescope for NASA explorer programme designed to search Exoplanets. NASA’s searches for Exoplanets covering 400 times larger area as covered by Kepler Mission.

SpaceX Falcon Rocket was launched TESS in 2018. TESS has so far identified 1, 835 Exoplanets since.

The main objective of Survey Satellite is to survey the brightest stars near the earth. It uses an array of wide field cameras that covers 85 per cent of the sky. The earlier mission such as KEPLER focused on planets around distant stars. TESS focuses on planets around nearby stars.

NASA’s Kepler Mission

NASA was launched Kepler Mission to survey Milky Way Galaxy in 2009. It was mainly focused on discovering hundreds of Earth like small planets. The mission focused on the following

  • To discover terrestrial and larger planets
  • To discover shapes and sizes of orbits of these planets
  • The estimate the planets in star systems
  • To discover sizes, densities and masses of giant planets
  • To discover properties of stars in planetary systems.

India’s Exoplanet Search Mission

PARAS is India’s Exoplanet search mission. PARAS is PRL Advanced Radial-velocity Abu-sky Search. It is ground-based exoplanet search device. PARAS is located at Mt Abu. It works at a resolution of 67 thousand.

PARAS has achieved RV accuracy of 1.3 m/sec. PARAS works on bright sun like quiet stars. It uses Thorium-Argon lamp for calibration. It is capable of detecting planets around M-type stars.

M-Type Stars

Around 76 per cent of stars in the solar system are M-type stars. They have low luminosities.

TESS finds 66 new Exoplanets TESS finds 66 new Exoplanets