Space & Astronomy

Articles in this section, newest first. Each one is written from the primary sources listed at its end.

• How Does the Sun Make Its Energy? What Underground Neutrino Detectors Confirmed

  2026-10-22

  The Sun fuses hydrogen into helium. Between 2014 and 2020 the Borexino detector in Italy caught the neutrinos from both fusion routes. What it measured and what is still open.

• Where Did Earth's Gold Come From? What the 2017 Neutron-Star Collision Showed

  2026-10-22

  Gold is made by the r-process, and in 2017 astronomers watched a neutron-star merger make heavy elements. What GW170817 measured, what it proved and what is still debated.