［"Baked Galaxies," or Half-Baked Theories? 「焼けた銀河」、それとも半焼き理論？］ Hopkins University used the Hubble Space Telescope to create a “detailed map of dark matter concentrations around two galaxies.” But how does “dark matter” …

［“Fizzy Bubbles” or Plasma Layers? 「発泡性気泡」またはプラズマ層？］ In this illustration by European Space Agency artists, we see the Earth lying within the magnetosphere, rendered in blue and surrounded by the solar wind. The white rec…

［Deep Space Explosion Baffles Astronomers 深宇宙爆発は天文学者を困惑させる] Each year, surprising discoveries raise new questions about exploding stars and other exotic objects in space. Above: Supernova 1987a in the Large Magellanic Clou…