Mysterious radio pulses repeating every 21 minutes have puzzled astronomers.
Sandeep K S
Jan 31
1 min read
Unraveling the mystery of slow radio pulses: Astronomers have detected mysterious "Long-Period Transients," challenging our understanding of pulsars. Recent findings point to a white dwarf star in a binary system as the source, paired with an M-dwarf star. This duo exhibits a stable nine-hour heartbeat pattern, driven by the "Stellar Wind" lighthouse mechanism.
Astrophysicists have completed ASTRID, the largest cosmological hydrodynamic simulation ever run, tracing the universe from the cosmic dawn ($z=99$) down to the present day ($z=0$). By resolving 166 billion particles across 815 million light-years, ASTRID unveils how supermassive black holes co-evolve with galaxies and sculpt the cosmic web.
Scientists have uncovered the first robust evidence of a black hole and neutron star crashing together while orbiting in an oval path, challenging long-standing assumptions about cosmic pair formation.
Most neutron star-black hole pairs are expected to adopt circular orbits long before merging, their orbits slowly rounded out by the constant emission of gravitational waves over millions of years.
Far from the warmth of any star, moons orbiting rogue gas giants might harbor oceans of liquid water—and potentially complex life—for billions of years.
Liquid water is considered essential for life. Surprisingly, however, stable conditions that are conducive to life could exist far from any sun.
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