27K views · 337 reactions | Hubble spotted the makings of a blockbuster: Two stars teaming up! ⭐️⭐️ Using its ultraviolet view, NASA's Hubble Space Telescope saw an ultra-massive white dwarf star resulting from a white dwarf merging with another star, rather than through the evolution of a single star. This suggests these rare white dwarfs may be more common than previously suspected. https://go.nasa.gov/41CYcCz | NASA’s Goddard Space Flight Center | Facebook

92 reactions · 19 shares | How do telescopes focus X-rays? In JAXA’s (Japan Aerospace Exploration Agency) XRISM and other observatories, the X-rays are bounced off specially designed mirrors at a very shallow angle, like a stone skipping on water. Learn more about how these mirrors work and why we use them: https://tmblr.co/Zz_Uqjcd97dtGy00 | NASA Universe | Facebook