Science Daily News

• A star exploded twice — First-ever image reveals its cosmic fingerprint July 3, 2025
  Astronomers studying the remnant SNR 0509-67.5 have finally caught a white dwarf in the act of a rare “double-detonation” supernova, where an initial helium blast on the star’s surface triggers a second, core-shattering explosion.
• The fatal mutation that lets cancer outsmart the human immune system July 3, 2025
  Scientists at UC Davis discovered a small genetic difference that could explain why humans are more prone to certain cancers than our primate cousins. The change affects a protein used by immune cells to kill tumors—except in humans, it’s vulnerable to being shut down by an enzyme that tumors release. This flaw may be one […]
• Earth’s weather satellites just spent 10 years watching Venus — here’s what they found July 2, 2025
  Japan’s Himawari weather satellites, designed to watch Earth, have quietly delivered a decade of infrared snapshots of Venus. By stitching 437 images together, scientists tracked daily thermal tides and shifting planetary waves in the planet’s cloud tops, even flagging calibration quirks in past spacecraft data.
• Why do killer whales keep handing us fish? Scientists unpack the mystery July 2, 2025
  Wild orcas across four continents have repeatedly floated fish and other prey to astonished swimmers and boaters, hinting that the ocean’s top predator likes to make friends. Researchers cataloged 34 such gifts over 20 years, noting the whales often lingered expectantly—and sometimes tried again—after humans declined their offerings, suggesting a curious, relationship-building motive.
• The pandemic pet boom was real. The happiness boost wasn’t July 2, 2025
  Locked-down Hungarians who gained or lost pets saw almost no lasting shift in mood or loneliness, and new dog owners actually felt less calm and satisfied over time—hinting that the storied “pet effect” may be more myth than mental-health remedy even in extreme isolation.