Sun sets above Jezero Crater

The Left Navigation Camera (Navcam) of the NASA Perseverance rover captured this image of a late afternoon sun above Jezero Crater at 15:38 pm on May 17, the rover’s 85th sol on Mars. Sol, a Martian day, is about 40 minutes longer than a day on Earth, which means the planets’ times constantly diverge. The two Navcams, located on top of the rover’s mast, help Perseverance drive autonomously and safely avoid obstacles. When not capturing atmospheric sceneries, the Navcams can detect objects as small as a golf ball up to 82 feet (25 meters) away. — Tereza Pultarova

Hubble spots faint emission nebula
An image of the emission nebula NGC 2313 captured by the Hubble Space Telescope.

Tuesday, May 18, 2021: The bright fluffy cloud in this image captured by the Hubble Space Telescope is the so-called emission nebula NGC 2313. Part of the constellation Monoceros (Greek for Unicorn), the nebula is formed of ionized light-emitting gas centered around the star V565. Some 3,700 light years away from the sun, the nebula, first discovered in 1862, can be found close to the much brighter Orion constellation but is not visible to the naked eye. — Tereza Pultarova

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