Bright green comet is a rare cosmic ‘messenger’, astronomers say

Bright green comet is a rare cosmic ‘messenger’, astronomers say

Bright green comet is a rare cosmic ‘messenger’, astronomers say

A comet that has not been seen from Earth for tens of thousands of years is visible in the sky this month.

Comet C/2022 E3 (ZTF) was discovered on March 2, 2022 by astronomers Frank Masci and Bryce Bolin using the Zwicky Transient Facility (ZTF) at the Palomar Observatory in California. At the time, the comet was just inside Jupiter’s orbit, some 399 million miles (643 million km) from the sun. Fast forward to today, and the comet has already made its closest approach to the sun and in a few weeks will make its closest approach to Earth on February 1.

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