Hubble Makes First Measurements of Earth-Sized Exoplanet Atmospheres

  • Released Wednesday, July 20th, 2016
  • Updated Wednesday, May 3rd, 2023 at 1:48PM

On May 4th, 2016, the Hubble Space Telescope made the first spectroscopic measurements of two of the three known Earth-sized exoplanets in the TRAPPIST-1 system just 40 light-years away. Now the results are in: a thick, puffy, hydrogen-helium atmosphere is likely ruled out from the possible range of atmospheres for these two planets.

Additional visuals from the European Southern Observatory can be downloaded here: http://www.eso.org/public/news/eso1615/E

Animation - Artist concept of the double-transit Hubble observed on May 4, 2016, when planets TRAPPIST-1b and TRAPPIST-1c passed across the disk of their host star just minutes apart.

For More Information



Credits

Please give credit for this item to:
NASA's Goddard Space Flight Center


Missions

This visualization is related to the following missions:

Papers used in this visualization