A research team led by Prof. Li Di from the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC) has revealed circular polarization in active repeating fast radio bursts based on precise observations of the Five-hundred-meter Aperture Spherical Telescope (FAST).

Their findings were published in Science Bulletin.

Fast radio bursts (FRBs) are the most luminous radio flashes in the universe. The estimated equivalent energy of one FRB event can rival the energy output the sun over a whole day or even a month to a year.

A comet that only orbits the sun once every 50,000 years is expected to be visible from Earth with the naked eye. The last time the comet visited, the Sahara desert was wet and fertile, Neanderthals and woolly mammoths still walked the Earth, and humans were—as far as we know—yet to reach North America.

C/2022 E3 (ZTF) was first spotted by the Zwicky Transient Facility (ZTF) on March 2, 2022, and is set to reach its closest point to the sun, or perihelion, on January 12, 2023. ZTF is an astronomical survey conducted by the Palomar Observatory in California.

Comets are “cosmic snowballs” made up of frozen gases, dust and rock that orbit the sun. As they approach our star, these fragile constructs are blasted with increasing amounts of radiation, a process that can produce two vast tails of gas and dust.

Earth.com

Astronomers say they have solved an outstanding problem that challenged our understanding of how the Universe evolved – the spatial distribution of faint satellite galaxies orbiting the Milky Way.

The Milky Way is the galaxy that contains our Solar System, and is named for its appearance from Earth. It is a barred spiral galaxy that contains an estimated 100–400 billion stars and has a diameter between 150,000 and 200,000 light-years.

JWST is the most powerful space telescope ever flown. Here’s how researched created the gigantic scope’s first products.