Teo Blašković founded The Watchers in 2011 and edited it until 2026, covering seismic and volcanic activity, extreme weather, space weather and near-Earth objects. Articles on this page are his archive.

  • ‘True polar wander’ and Earth’s ice ages

    Rice University geophysicists have determined Earth shifted relative to its spin axis within the past 12 million years, which caused Greenland to move far enough toward the north pole to kick off the ice age that began about 3.2 million years ago. The study is based…

  • Floods in the desert: Brutal flash floods hit Saudi Arabia

    Heavy rainfall and devastating floods, wreaking havoc across Saudi Arabia since November 10 continued into December. The rains have so far left more than 30 people dead, disrupted traffic and forced evacuation of at least 4 000 people. Authorities are urging…

  • Night sky guide for December 2018

    December 2 – 69P/Taylor reaches its brightest. Comet 69P/Taylor is forecast to reach its brightest, at around mag 11.9. It will lie at a distance of 2.40 AU from the Sun, and at a distance of 1.53 AU from the Earth. December 3 – C/2018 L2 (ATLAS) at perihelion….

  • Newly discovered asteroid 2018 WG2 flew past Earth at 0.52 LD

    A small asteroid designated 2018 WG2 flew past Earth at a distance of 0.52 LD / 0.00134 AU (200 461 km / 124 560 miles) on November 30, 2018. Asteroid 2018 WG2 belongs to the Apollo group of asteroids. It was first observed at Mt. Lemmon Survey, Arizona and has an…

  • Strong and shallow M7.0 earthquake hits Anchorage, Alaska

    A strong and shallow earthquake registered by the USGS as M7.0 hit Anchorage, Alaska at 17:29 UTC (08:29 AKST) on November 30, 2018. The agency is reporting a depth of 40.9 km (25.4 miles). EMSC is reporting M7.0 at a depth of 31 km (19.2 miles). The quake was…

  • Newly discovered asteroid 2018 WZ1 flew past Earth at 0.28 LD

    A newly discovered asteroid designated 2018 WZ1 flew past Earth at a distance of 0.28 LD / 0.00073 AU (109 206 km / 67 857 miles) on November 27, 2018. This is the 69th known asteroid to fly by our planet within 1 lunar distance since the start of the year and the…