"The comet is made of ice and dust and emits a greenish aura, and is estimated to have a diameter of about a kilometre." via Al Jazeera Headline Image: Dan Bartlett/NASA A comet that will shoot past Earth and the Sun in the coming weeks for the first time in 50,000 years could be visible to the naked eye. The comet is expected to pass nearest to Earth on February 1 and will be easy to spot with a good pair of binoculars or even with the naked eye, provided the sky is not too illuminated by city lights or the Moon. As a fuller Moon could make spotting it difficult, the new Moon during the weekend of January 21-22 offers a good chance for stargazers, Nicolas Biver, an astrophysicist at the Paris Observatory, told the AFP news agency. The comet was called C/2022 E3 (ZTF) after the California-based Zwicky Transient Facility, which first spotted it passing Jupiter in March last year. Biver said the comet is made of ice and dust, and emits a greenish aura. It is estimated to have a