• Open letter: we must stop killer robots before they are built

    More than 1 000 of the leading researchers in artificial intelligence (AI) and robotics have signed and published an open letter calling for a ban on offensive autonomous weapons, also known colloquially as “killer robots”. The letter, published July 27, 201

  • California water agencies don’t know how much their pipes leak

    With California homeowners taking steps to save water during the drought, they may be dismayed to hear that a new UCLA report found that water agencies are unable to keep close track of how much their own pipes are leaking.The report is particularly timely due to a new

  • Blue Moon on July 31, 2015

    For the second time this month, the Moon is about to become full, but it most likely won't turn blue, like it's name suggests. According to modern folklore, whenever there are two full Moons in a calendar month, the second one is "blue." Most Blue Moon

  • Pyroclastic flow on Mount Sinabung, Indonesia – July 27, 2015

    Effusion of viscous lava continues at slow pace to feed the lava dome with two active lobes on the SE and E upper flanks of Indonesian Sinabung volcano.At 12:22 local time today, a small part of the eastern lobe collapsed into a medium-sized pyroclastic flow that

  • Edge of Stability: 5 weeks of severe weather in 5 minutes

    This timelapse video was produced by photographer Jeff Boyce of Negative Tilt Photography who spent five weeks from May to June of this year traveling around the United States to capture over 70 000 high-resolution photos of severe weather and the night sky.The result i

  • Very strong M7.0 earthquake hits Papua, Indonesia

    A very strong earthquake M7.0 hit Papua, Indonesia at 21:41 UTC on July 27, 2015. USGS is reporting depth of 52.9 km (32.8 miles). EMSC is reporting M7.0 at a depth of 50 km (31 miles). According to the USGS, epicenter was located 234 km (145 miles) W of Abepura and 247