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Starquakes tell a lot about those red giant stars

Astronomers have taken the pulse of red giant stars by measuring their starquakes — stellar shivers that run so deep they can reach a star's core, scientists say.Full story

Astronomers identify zirconium star

Meet LS IV-14 116 is  not the most memorable name for a star, but nonetheless, this star is very special. Located some 2,000 light years from the sun, this star's atmosphere features glittery clouds of zirconium — more commonly known as "fake diamond." Full story

Newly Discovered Planet Adopted by Milky Way

Between six billion and nine billion years ago, the Milky Way and another smaller galaxy found themselves at approximately the same place at approximately the same time. Full story

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Artist's impression of recurrent nova RS Ophiuchi
Artist's impression of recurrent nova RS Ophiuchi

Artist's impression of the central system of the recurrent nova RS Ophiuchi early in its 2006 outburst. Hydrogen-rich material from the red giant falls onto the surface of its companion white dwarf, leading to a runaway thermonuclear explosion. Ejecta travelling at several thousand kilometers per se

Chi Cygni
Chi Cygni

Chi Cygni, a red giant star as shown in this artist's conception, is nearing the end of its life. As it runs out of fuel, it pulses in and out, beating like a giant heart and ejecting shells of material.

Artist's conception of the view of a hypothetical planet around a distant red giant star
Artist's conception of the view of a hypothetical planet around a distant red giant star

Artist's conception of the view of a hypothetical planet around a distant red giant star. Our sun is expected to swell in a few billion years to first fry Earth then engulf it.