Slashdot Mirror


Astronomers Discover 13 New Fast Radio Bursts From Deep Space (nationalgeographic.com)

Astronomers have detected 13 high-speed bursts of radio waves coming from deep space -- including one that regularly repeats. While the exact sources remain unknown, the new bevy of mysterious blasts does offer fresh clues to where and why such flashes appear across the cosmos. From a report: Fast radio bursts, as they are known to scientists, are among the universe's most bizarre phenomena. Each burst lasts just thousandths of a second, and they all appear to be coming from far outside our home galaxy, the Milky Way. Since these bursts were discovered in 2007, their cause has remained a puzzle. Based on estimations of the known range of their frequencies and an understanding of activity in the universe, scientists expect that nearly a thousand of them happen every day. But to date, only a handful have been found.

Now, a team using the Canadian Hydrogen Intensity Mapping Experiment, or CHIME, has announced the additional 13 new detections, including an especially rare repeating burst. Until now, only one other repeating fast radio burst was known to exist. "The repeater," as it being called, and its 12 counterparts came from a region of space some 1.5 billion light-years away, the team reports today in the journal Nature. All 13 new bursts have the lowest radio frequency yet detected, but they were also brighter than previously seen fast radio bursts, leading the team to think the low frequency has something to do with the sources' environment.

13 of 57 comments (clear)

  1. Is There Any Chance Of Sentient Beings? by tsuliga · · Score: 2

    I would like to know if this is a natural phenomenon or is it possible it is from sentient beings. There is no indication in the summary.

    So if it is from a natural phenomenon, please indicate this in the summary and the discussion will proceed in a normal scientific manner.

    Otherwise this is an extremely important discovery - mainly the repeating signals.

    1. Re:Is There Any Chance Of Sentient Beings? by TFlan91 · · Score: 4, Interesting

      This sounds more akin to a neutron star spinning on an axis - especially "the repeater".

      Who's to say this isn't just another type of neutron star to add to the list of pulsars and magnetars.

      But the notion of sentient origin is always fascinating. I'm glad we observe this slice of time

    2. Re:Is There Any Chance Of Sentient Beings? by lgw · · Score: 5, Funny

      I would like to know if this is a natural phenomenon or is it possible it is from sentient beings. There is no indication in the summary.

      First rule of astronomy: it's never aliens.*

      * Until it's aliens.

      --
      Socialism: a lie told by totalitarians and believed by fools.
    3. Re:Is There Any Chance Of Sentient Beings? by tlhIngan · · Score: 2

      I would like to know if this is a natural phenomenon or is it possible it is from sentient beings. There is no indication in the summary.

      Considering TFS says "the cause has remained a puzzle", astronomers would like to know the answer too.

    4. Re: Is There Any Chance Of Sentient Beings? by javaman235 · · Score: 2

      If we are hearing it here from another galaxy and it is alien, it is a signal so ridiculously strong, I would be willing to consider that it is not a message at all, but rather an alien system of power distribution. Similar to what Tesla proposed for wireless energy, strong enough bursts could keep probes running long after nuclear reactors shut down, as will happen to Voyager in about 8 years.

      --
      -The art of programming is the pursuit of absolute simplicity.
    5. Re:Is There Any Chance Of Sentient Beings? by ledow · · Score: 2

      Rule #1: It's not aliens.

      But any aliens will be able to see what we see too.

      Who's to say that it's not an galactic standard that such easily-visible, obviously stand-out, and naturally-occurring phenomena aren't used as waypoints for navigation, and maybe even naturally become meeting points and the "service stations" of the galaxy? Not because someone is deliberately making them (they'd be patterned and obvious and everywhere and have more information inside their blinking than just a blinking light), but because they are nice natural milestones.

      But something blinking regularly across the entire galaxy is probably NOT a specific sign of intelligent life in any way, shape or form. Intelligent life doesn't advertise itself in such simple ways, the same way that we don't blast out Morse Code into the abyss for more than a fraction of a fraction of a tiny percent of a fraction of our existence, and certainly don't do it in all directions so powerfully.

      If we wanted to attract people, we wouldn't just put out a bright light on a regular pulse. We'd cram it full of things to entice intelligent life in - maybe with a pulse to gain your attention, and then inside that pulse, or nearby, or having the pulses in a pattern with each other, etc. etc.

      Same way that on Earth, a blinking light moving overhead isn't going to be an alien trying to attract attention or communicate. It's going to be an airplane, or a drone. If they wanted to attract our attention and had the power to make such things, they'd do it better.

  2. Clearly... by skam240 · · Score: 2

    Clearly it's a big ass space battle!

    Fucking kick ass!

    --
    I ignore Anonymous Coward posts. If you want to discuss something, that's awesome. Log in.
    1. Re:Clearly... by jwhyche · · Score: 2

      I hear stories like this and think of the Drake equation. I wonder if things like this are an alien race discovering some hyper advanced technology, losing control of it, and having it destroy everything.

      --
      I read at +2. If your post doesn't reach that level I will not see or respond to it.
  3. Re:I listened to it. Was hoping it'd be... by PolygamousRanchKid+ · · Score: 4, Funny

    I decoded it, it read

    "Be Sure To Drink Your Ovaltine."

    Burma Shave

    --
    Schroedinger's Brexit: The UK is both in and out of the EU at the same time!
  4. Sorry Hank already solved the mystery. Spoiler... by wolfheart111 · · Score: 2
    --
    [($)]
  5. Navigation Aids by sycodon · · Score: 3, Interesting

    I guess something like this could be used as a deep space GPS if you knew exactly where they originated from

    --
    When Fascism comes to America, it will call itself Anti-Fascism, and tell you to give up your guns.
    1. Re:Navigation Aids by stealth_finger · · Score: 3

      I guess something like this could be used as a deep space GPS if you knew exactly where they originated from

      Like they did on the golden record? https://en.wikipedia.org/wiki/...

      --
      Wanna buy a shirt?
      https://www.redbubble.com/people/stealthfinger/shop?asc=u
  6. A giant scanning radar beam? by misnohmer · · Score: 2

    A giant 10km in diameter radar antenna array. Earth sees a small burst of radio waves repeatedly every time the radar beam scans across in the direction or Earth (hence the short duration). The big question is who is operating such scanning radar arrays.