Why is the Geminid meteor shower best around 2 a.m.? It’s because that’s when the shower’s radiant point – near the bright star Castor in the constellation Gemini – is highest in the sky. Source: https://earthsky.org/astronomy-essentials/radiant-point-for-geminid-meteor-shower…
Tag: Comet
10 tips for watching the Geminids
We anticipate 2020 will be a great year for watching the Geminid meteor shower! Here are 10 tips. Source: https://earthsky.org/astronomy-essentials/10-tips-for-watching-the-geminids…
2019 LD2: A very interesting orbit-hopping comet
Prior to Comet 2019 LD2, discovered last year, astronomers had never witnessed a comet in the process of orbiting from being between Jupiter and Neptune to orbiting inside Jupiter’s orbit. Now … witness the power of gravity! Source: https://earthsky.org/space/comet-2019-ld2-transitioning-orbit-hopping-jupiter-family…
A surprising find of fast-moving gas from a young star
Fast-moving gas from a young star – located in a star-forming region 400 light-years away – is giving astronomers insight into how planets form. Source: https://earthsky.org/space/no-lup-surprising-find-outflowing-gas-young-star…
Did the Wow! signal come from this star?
Where did the famous mystery Wow! signal, detected in 1977, come from? Astronomer Alberto Caballero might have pinpointed the host star. It’s a sunlike star 1,800 light-years away, in the direction to the center of our Milky Way. Source: https://earthsky.org/space/source-of-wow-signal-in-1977-sunlike-star-2mass-19281982-2640123…
Moon lights up Gemini December 2 and 3
These next few nights – December 2 and 3 – the bright waning gibbous moon shines in front of the constellation Gemini the Twins. Find this constellation, and you’ve found the radiant point for the Geminid meteor shower, due to peak on December 13-14. Source: https://earthsky.org/tonight/moon-lights-up-gemini-december-2-and-3…
Researchers discover solid phosphorus from a comet
An international study led from the University of Turku, Finland, discovered phosphorus and fluorine in solid dust particles collected from a comet. The finding indicates that all the most important elements necessary for life may have been delivered to the Earth by comets. Source: https://phys.org/news/2020-11-solid-phosphorus-comet.html…
Fast-moving gas flowing away from young star caused by icy comet vaporisation
A unique stage of planetary system evolution has been imaged by astronomers, showing fast-moving carbon monoxide gas flowing away from a star system over 400 light years away, a discovery that provides an opportunity to study how our own solar system developed. Source: https://phys.org/news/2020-11-fast-moving-gas-young-star-icy.html…
Scientists claim controversial results of comet observations are consistent
Astrophysicists from Far Eastern Federal University (FEFU) joined the international research team for explaining the difference in the results of observation of the comet 41P/ Tuttle—Giacobini—Kresak. Researchers believe that data obtained by three independent teams are complementary and its complex analysis helps to unravel the mystery of dust chemical composition of comet 41P and other conundrums of the Universe. A related…
Does Jupiter’s moon Europa have geysers? If so, what’s their source?
If watery plumes do burst from Europa’s surface, they might originate not in the moon’s underground ocean, but instead in pockets of brine trapped in the moon’s crust. If that’s so, it could be a source of frustration for those who want to probe Europa’s ocean for possible life. Source: https://earthsky.org/space/jupiter-moon-europa-plumes-salty-water-in-crust…