Page 12 - News tagged with red giants

One in ten stars ate a Jupiter-sized planet, suggests paper

In space, cataclysmic events happen to stars all the time. Some explode as supernovae, some get torn apart by black holes, and some suffer other fates. But when it comes to planets, stars turn the tables. Then it's the stars ...

Mapping lithium evolution of giant stars with LAMOST-Kepler data

Based on LAMOST and Kepler data, a new study led by astronomers from National Astronomical Observatories of Chinese Academy of Sciences (NAOC) has revealed evolutionary features of lithium for evolved stars, which updates ...

NASA's Ingenuity helicopter sees a beautiful sunset on Mars

Sunsets provide some of the most beautiful natural imagery anywhere on Earth. People flock from all over to see sunsets at specific places at specific times, such as when they perfectly align down a street in Manhattan. But ...

Researchers detect critical clue about the life cycles of binary stars

We now have new clues about a mysterious stage in the life of binary stars, thanks to research from The Australian National University (ANU) and Yunnan Observatory in China.

Measuring the temperatures of red giants is actually pretty tricky

Red giant stars are, well, red and giant. But astronomers have always had difficulty estimating their temperatures due to their complex and turbulent atmospheres. Without an accurate gauge of their temperatures, it's difficult ...

Another reason red dwarfs might be bad for life: No asteroid belts

In a recent study accepted to The Astrophysical Journal Letters, a team of researchers at the University of Nevada, Las Vegas (UNLV) investigated the potential for life on exoplanets orbiting M-dwarf stars, also known as ...

NASA to host launch tweetup for Jupiter-bound mission

Why extinct species seem to be returning from the dead

Like something out of a zombie movie, species that were once thought extinct seem to be rising from the dead. Between February 21 and March 4 2019, three notable rediscoveries were announced – the Fernandina Island Galápagos ...

Research reveals stellar kinematics of the galactic disc

By using a sample of 118945 red giant branch (RGB) stars from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) and Gaia, Dr. Wu Yaqian from the National Astronomical Observatories of the Chinese Academy ...

Livestock can uproot protected wildlife from prime real estate

The story of wildlife conservation is usually framed as man vs. treasured wildlife. But there's growing evidence that the narrative deserves to have leading roles for livestock such as sheep, yaks or cows.