Since their first discovery in the 1960s, over 2,000 pulsars, rapidly spinning, dense stellar cores, have been found. Data from NASA's Chandra X-ray Observatory has confirmed the youngest known pulsar in our Milky Way galaxy. This pulsar, known as Kes 75, is located about 19,000 light years from Earth. Scientists have uncovered interesting properties of Kes 75 that could help them better understand how some stars end their lives.
This illustration depicts NASA's exoplanet hunter, the Kepler space telescope. The agency announced on Oct. 30, 2018, that Kepler has run out of fuel and is being retired within its current and safe orbit, away from Earth. Kepler leaves a legacy of more than 2,600 exoplanet discoveries. Credits: NASA/Wendy Stenzel/Daniel Rutter
NGC 2392 is a planetary nebula, a phase that results when a star like the sun becomes a red giant and sheds its outer layers. X-rays from Chandra (pink) shows superheated gas around the dense, hot core of the star. Our Sun will become a planetary nebula about 5 billion years from now. Credits: X-ray: NASA/CXC/IAA-CSIC/N.Ruiz et al, Optical: NASA/STScI
A new Chandra image of SN 1006 provides new details about the remains of an exploded star. This explosion was witnessed from Earth over a millennium ago. The Chandra data provides the best map to date of the debris field including information on important elements expanding into space. SN 1006 belongs to a class of supernova used to measure the expansion of the Universe.
Chandra X-ray & Hubble Optical/Infrared Images of GRB 150101B.
A distant cosmic relative to the first source that astronomers detected in both gravitational waves and light may have been discovered. These images show Chandra data of this object, known as GRB 150101B, in context with a Hubble optical and infrared image of GRB 150101B. The observations from Chandra and other telescopes show that GRB 150101B share remarkable similarities to GW170817, the first source identified to emit both gravitational waves and light. This suggests these two sources are likely both associated with a merger of neutron stars.
(Credit: X-ray: ASA/CXC/GSFC/UMC/E. Troja et al.; Optical and infrared: NASA/STScI.)