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Read article: Nearby galaxy harbours rarest type of black hole Telescopes and space missions Research update Nearby galaxy harbours rarest type of black hole M82's black hole is 400 times the Sun's mass
Read article: New correction to speed of light could explain SN1987 neutrino burst Telescopes and space missions Research update New correction to speed of light could explain SN1987 neutrino burst Gravitational effect on virtual particles violates equivalence principle
Read article: A century of general relativity History Opinion and reviews A century of general relativity An intellectual history of Einstein's general theory of relativity, reviewed by Cormac O'Raifeartaigh
Read article: Theories of the dark side Gravity Feature Theories of the dark side Jeff Forshaw reviews "state of play" for various theories about the nature of dark matter and dark energy
Read article: Couple emerges from trio of supermassive black holes Telescopes and space missions Research update Couple emerges from trio of supermassive black holes Tightly orbiting pair could create detectable gravitational waves
Read article: Dwarf planet could illuminate the dark sector Telescopes and space missions Research update Dwarf planet could illuminate the dark sector How to test antigravity using Kuiper belt objects