Related topics: massive stars · stars

Stellar wind of old stars reveals existence of a partner

Red giants are old stars that eject gaseous material and solid particles through a stellar wind. Some red giants appeared to lose an exceptionally large amount of mass this way. However, new observations reveal that this ...

Energetic particles can bombard exoplanets

TRAPPIST-1 is a system of seven Earth-sized worlds orbiting an ultra-cool dwarf star about 120 light-years away. The star, and hence its system of planets, is thought to be between five-to-ten billion years old, up to twice ...

Lifting the veil on star formation in the Orion Nebula

The stellar wind from a newborn star in the Orion Nebula prevents more new stars from forming nearby. That is the result of new research conducted by an international research team led by the University of Cologne (Germany) ...

A stellar achievement: Magnetized space winds in the laboratory

New insights have been gained about stellar winds, streams of high-speed charged particles called plasma that blow through interstellar space. These winds, created by eruptions from stars or stellar explosions, carry with ...

NuSTAR mission proves superstar Eta Carinae shoots cosmic rays

A new study using data from NASA's NuSTAR space telescope suggests that Eta Carinae, the most luminous and massive stellar system within 10,000 light-years, is accelerating particles to high energies—some of which may reach ...

Two Hubble views of the same stellar nursery

These NASA Hubble Space Telescope images compare two diverse views of the roiling heart of a vast stellar nursery, known as the Lagoon Nebula. The images, one taken in visible and the other in infrared light, celebrate Hubble's ...

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