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Sunday, 4 October 2026
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Exploration

Deep Space

7 stories from 3 publishers, gathered

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Hidden X-ray phase revealed in likely neutron star merger

An international team of astronomers, including researchers from the Department of Physics and the Hong Kong Institute for Astronomy and Astrophysics (HKIAA) at The University of Hong Kong (HKU), has discovered a previously hidden phase of high-energy activity following the merger of compact stars.

Phys.org Space

Oct. 4th, 1957: Sputnik launches

On Oct. 4th, 1957, at 10:29 PM Moscow time, the Soviet Union successfully launched Sputnik 1 into space on a repurposed R-7 rocket. The world’s first artificial satellite, Sputnik was about 22 inches (58 centimeters) in diameter and weighed 184 pounds (84 kilograms).…

Astronomy Magazine

The Sky Today on Sunday, October 4: Saturn reaches opposition

Astronomy Magazine

Q&A: An Earth-like planet with two suns?

Phys.org Space