• Business,  Tech

    Mysterious radio signals from deep space detected

    Astronomers have revealed details of mysterious signals emanating from a distant galaxy, picked up by a telescope in Canada. The precise nature and origin of the blasts of radio waves is unknown. Among the 13 fast radio bursts, known as FRBs, was a very unusual repeating signal, coming from the same source about 1.5 billion light years away. Such an event has only been reported once before, by a different telescope. “Knowing that there is another suggests that there could be more out there,” said Ingrid Stairs, an astrophysicist from the University of British Columbia (UBC). “And with more repeaters and more sources available for study, we may be able…

  • Tech

    Slack ‘bans users’ who have visited US sanctioned countries

    Some users of communication service Slack have reported their accounts have been closed over visits to countries under US sanctions. The move, which Slack says is to comply with US regulations, is believed to be affecting users who have visited nations including Iran and North Korea. But many on social media say they were not warned in advance. Some have said they had not visited the countries in recent years, and believe their bans were in error. Cuba, Syria and Crimea are other countries and regions where Slack says its systems may not be used. Slack said it would individually review cases if users thought their account had been wrongly…

  • Tech

    Gatwick airport: How countries counter the drone threat

    Rogue drones “deliberately” flown over one of the UK’s busiest airports caused travel chaos this week. Incoming planes were forced to divert to airports up and down the country as the drones, or unmanned aerial vehicles (UAVs), repeatedly appeared over the airfield at London’s Gatwick Airport. The situation was so serious the Army was called in to support the local police in tackling the issue, with the runway finally re-opening on Friday morning. For some time now, governments around the world have been looking at different ways of addressing the dangers of drone use in areas where they pose safety risks. Here we look at some of the solutions –…