Uncategorized

  1. Physics

    Tiny, sunlight-powered aircraft could soar beyond airplanes’ reach

    Microfliers levitate when hit with light, in conditions like those high in Earth’s atmosphere.

    By Emily Conover
  2. Health & Medicine

    Making masks fit better can reduce coronavirus exposure by 96 percent

    Double masking, rubber bands and other hacks can produce a tighter fit and prevent aerosol particles that can carry coronavirus from getting through.

    By Tina Hesman Saey
  3. Physics

    50 years ago, scientists were on a quest for quarks

    In the 1970s, physicists confirmed particles called quarks existed. Fifty years later, many kinds of quarks in many combinations have been discovered.

    By Maria Temming
  4. Astronomy

    The number of Milky Way nova explosions per year has been pinned down

    Knowing how frequently these stellar eruptions occur will help determine their contribution to the galaxy’s chemical makeup.