Science

124 posts

NASA Telescope Spots Massive Rings Around a Black Hole— 10 Things You Need to Know The concentric ripples are actually X-ray echoes from a flare in a distant binary system. Credit: X-ray: NASA / CXC / U. Wisc-Madison / S. Heinz et al .; Optical / IR Range: Pan-STARRS

NASA Telescope Spots Massive Rings Around a Black Hole— 10 Things You Need to Know

American scientists using NASA’s Chandra and Swift space observatories have captured a bright short-lived phenomenon – a sequence of concentric rings around a black hole, which are echoes from X-ray flares. Such images of giant X-ray rings provide new information about the dust contained in our Galaxy.

NASA Model On Star Resembling Our Sun—10 Reasons Why This Matters Artist's impression of the early appearance of our Sun based on the research on a new star. Credit: NASA's Goddard Space Flight Center/Conceptual Image Lab

NASA Model On Star Resembling Our Sun—10 Reasons Why This Matters

By the standards of the stars, the Sun is now “a moderately plump star in its prime.” But to thoroughly understand its evolution and try to predict future development, scientists need to find out what such bodies were like at earlier stages of development. Observations of young stars of the same type and, of course, modeling help a lot in this process.

Researchers Find Earliest Fossil Record of Animal Life on Earth –10 Things You Should Know A photograph of the vicinity of the site where the alleged 890 -million-year-old sponge fossil record was found. Credit: Elizabeth Turner, Laurentian University

Researchers Find Earliest Fossil Record of Animal Life on Earth –10 Things You Should Know

Elizabeth Turner, a Canadian geologist at the University of Laurentia, released a study describing the earliest fossil record on Earth, dating back 890 million years. The discovery could make a real sensation, as it shifts the history of the emergence of animals on Earth by about 350 million years.