Can giant space mirrors boost green energy on Earth? A start-up aims to find out

Nature, Published online: 17 July 2026; doi:10.1038/d41586-026-02218-9Astronomers are deeply worried that a planned array of 50,000 mirror-bearing satellites in orbit will severely compromise telescopes.

Nature, Published online: 17 July 2026; doi:10.1038/d41586-026-02218-9

Astronomers are deeply worried that a planned array of 50,000 mirror-bearing satellites in orbit will severely compromise telescopes.

Briefing Chat: Sweet! Elusive sugar molecules found in space

Nature, Published online: 17 July 2026; doi:10.1038/d41586-026-02263-4Nature staff discuss the discovery of a four carbon ‘true sugar’ in interstellar space — plus, a formula inscribed on a wall reveals a Maya mathematician’s name….

Nature, Published online: 17 July 2026; doi:10.1038/d41586-026-02263-4

Nature staff discuss the discovery of a four carbon ‘true sugar’ in interstellar space — plus, a formula inscribed on a wall reveals a Maya mathematician’s name.

Man’s ability to make sperm restored after testicular tissue transplant: what scientists think

Nature, Published online: 17 July 2026; doi:10.1038/d41586-026-02191-3Testicle sample removed from a ten-year-old before chemotherapy and frozen proves viable 16 years later.

Nature, Published online: 17 July 2026; doi:10.1038/d41586-026-02191-3

Testicle sample removed from a ten-year-old before chemotherapy and frozen proves viable 16 years later.