"Extraordinary claims require extraordinary evidence," said Carl Sagan. This phrase is the standard that astronomers will be applying to a curious signal captured with China's "Sky Eye" telescope that might be a transmission ...
Astronomy
Jun 16, 2022
0
648
Astronomers refer to all the elements heavier than helium as "metals," even elements that are typically found in gaseous form. In the big bang only hydrogen and helium (and a trace of lithium) were created while the "metals" ...
Astronomy
Aug 2, 2021
4
666
Astronomers have uncovered a new way of searching for life in the cosmos. Harsh ultraviolet radiation flares from red suns, once thought to destroy surface life on planets, might help uncover hidden biospheres. Their radiation ...
Astronomy
Aug 13, 2019
0
648
As astrophysics technology and research continue to advance, one question persists: is there life elsewhere in the universe? The Milky Way galaxy alone has hundreds of billions of celestial bodies, but scientists often look ...
Astrobiology
Dec 5, 2023
14
284
A pair of researchers at the Japan Aerospace Exploration Agency (JAXA) has published a perspective piece in the journal Science outlining the efforts being conducted this decade to find out if Mars once hosted life. In their ...
Vegetarians need not worry yet—plants will be on Earth for a long time to come. But not forever. The sun will ultimately determine the long-term existence of life on Earth. Its total energy output, called luminosity, has ...
The amount of long-lived radioactive elements incorporated into a rocky planet as it forms may be a crucial factor in determining its future habitability, according to a new study by an interdisciplinary team of scientists ...
Astronomy
Nov 10, 2020
19
790
Scientists using data from NASA's Curiosity rover have measured the total organic carbon—a key component in the molecules of life—in Martian rocks for the first time.
Astrobiology
Jun 27, 2022
0
513
Current state-of-the-art instrumentation being sent to Mars to collect and analyze evidence of ancient life on the Red Planet may not be sensitive enough to make accurate assessments, according to an international research ...
Astrobiology
Feb 21, 2023
2
436
Billions of years ago, water flowed across Mars. Most scientists agree the red planet had rivers. But did those rivers flow into an ocean? New research from the University of Arkansas found strong evidence in Mars' geology ...
Astrobiology
Sep 30, 2025
0
280
