NASA's Jet Propulsion Laboratory News and Features 13 Sep 2019, 14:22 UTC Scientists have discovered that a mysterious pressure dubbed "dark energy" makes up about 68% of the total energy content of the cosmos, but so far we don't know much more about it. Exploring the nature of dark energy is one of the primary reasons NASA is building the Wide Field Infrared Survey Telescope (WFIRST), a space telescope whose measurements will help illuminate the dark energy puzzle. With a better understanding of dark energy, we will have a better sense of the past and future evolution of the universe.
NASA's Goddard Space Flight Center 13 Sep 2019, 11:30 UTC This image, taken with the NASA/ESA Hubble Space Telescope, focuses on an object named UGC 695, which is located 30 million light-years away within the constellation Cetus (the Sea Monster), also known as the Whale. A bounty of diverse background galaxies is also visible in this image.
NASA's Jet Propulsion Laboratory News and Features 13 Sep 2019, 06:52 UTC A newly discovered comet has excited the astronomical community this week because it appears to have originated from outside the solar system. The object - designated C/2019 Q4 (Borisov) - was discovered on Aug. 30, 2019, by Gennady Borisov at the MARGO observatory in Nauchnij, Crimea. The official confirmation that comet C/2019 Q4 is an interstellar comet has not yet been made, but if it is interstellar, it would be only the second such object detected. The first, 'Oumuamua, was observed and confirmed in October 2017.
Hubble Space Telescope News 12 Sep 2019, 14:00 UTC
MIT 12 Sep 2019, 13:29 UTC If Albert Einstein’s theory of general relativity holds true, then a black hole, born from the cosmically quaking collisions of two massive black holes, should itself “ring” in the aftermath, producing gravitational waves much like a struck bell reverbates sound waves. Einstein predicted that the particular pitch and decay of these gravitational waves should be a direct signature of the newly formed black hole’s mass and spin.
Square Kilometer Array 12 Sep 2019, 08:00 UTC An international team of astronomers using South Africa’s MeerKAT radio telescope has discovered enormous balloon-like structures that tower hundreds of light-years above and below the centre of our galaxy.
NASA's Chandra X-ray Observatory 11 Sep 2019, 17:22 UTC A supermassive black hole is blasting out X-rays about every nine hours, according to data from NASA's Chandra X-ray Observatory and ESA's XMM-Newton, as described in our latest press release. This indicates that this black hole, containing about 400,000 times the mass of our Sun, is consuming significant amounts of material about three times per day.
Hubble Space Telescope News 11 Sep 2019, 17:00 UTC