In a classical nova, a white dwarf siphons material off a companion star, piling up material on its surface until thermonuclear processes kick off, creating a brilliant outburst. NASA / JPL-Caltech Astronomers have detected gamma-ray emission from three classical novae, an unexpected discovery that has left them perplexed. Some days, it seems like everything is …
This artist’s rendering shows one model of pulsar J1023 before its radio emission (green) vanished. Normally, an outflow of high-energy particles from the pulsar staves off the gas stream from its companion. NASA’s Goddard Space Flight Center An exceptional binary containing a rapidly spinning neutron star underwent a dramatic change in behavior never before observed …
Created using observations from Hubble’s Frontier Fields observing program, the map shows the amount and distribution of mass within MCS J0416.1–2403. By Hubble ESA, Garching, Germany | Published: Thursday, July 24, 2014 Astronomers using the NASA/ESA Hubble Space Telescope have mapped the mass within a galaxy cluster more precisely than ever before. Created using observations …
New mass map of a distant galaxy cluster is the most precise yet Read More »
Scientists have confirmed that the soft X-ray glow permeating the sky has two sources: one inside the solar system, one outside. For over a decade, astronomers have debated the source of a soft X-ray glow that permeates the sky. Some thought the solar wind might be responsible, while others suspected an enormous bubble of hot …
