NASA glimpses surface of distant rocky exoplanet
Green Energy

NASA glimpses surface of distant rocky exoplanet

Data from NASA’s Spitzer Space Telescope has given scientists a first glimpse into conditions on the surface of a rocky exoplanet beyond the solar system.

Planet LHS 3844b is located 48.6 light-years from Earth and has a radius 1.3 times that of Earth, according to NASA. The exoplanet, which is orbiting a small star called an M dwarf, was first spotted by NASA’s Transiting Exoplanet Satellite Survey (TESS) in 2018.

A light-year measures distance in space and equals 6 trillion miles.

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New research indicates that the mysterious planet’s surface may resemble Earth’s Moon or Mercury, NASA said in a statement released Monday. “The planet likely has little to no atmosphere and could be covered in the same cooled volcanic material found in the dark areas of the Moon’s surface, called mare,” it explained.

Artist's illustration depicts the exoplanet LHS 3844b.

Artist’s illustration depicts the exoplanet LHS 3844b.
(Credits: NASA/JPL-Caltech/R. Hurt [IPAC])

The infrared Spitzer Space Telescope was able to detect light from the surface of LHS 3844b. “The planet makes one full revolution around its parent star in just 11 hours,” NASA said in the statement. “With such a tight orbit, LHS 3844b is most likely ‘tidally locked,’ which is when one side of a planet permanently faces the star. The star-facing side, or dayside, is about 1,410 degrees Fahrenheit (770 degrees Celsius).”

The research study was published in the journal Nature.

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“We’ve got lots of theories about how planetary atmospheres fare around M dwarfs, but we haven’t been able to study them empirically,” said Laura Kreidberg,