Skip to content
Vatican Observatory
  • About
    • Overview
    • Team
  • Telescopes
    • Overview
    • Telescope Images
  • Latest
    • Overview
    • Resources
    • Press
    • Audio
    • Video
    • Research
    • Authors
    • Newsletter
    • Tucson Meteor Cameras
  • Podcast
  • Education
    • Overview
    • Resource Center
    • Image Gallery
    • Summer School
    • Books
    • FAQs
    • Software
    • Additional Resources
    • ACME
    • Ambassadors
  • Shop
  • Calendar
  • Support
    • Overview
    • Donate Now
    • Sacred Space Astronomy
      • View Content
    • Fr. Coyne Fundraiser
    • Bequests / Trusts
    • The Foundation
      • Newsletters
      • Annual Reports
  • Press
  • Specola Vaticana
  • Contact
    • Contact
    • FAQs
  • About
    • Overview
    • Team
  • Telescopes
    • Overview
    • Telescope Images
  • Latest
    • Overview
    • Resources
    • Press
    • Audio
    • Video
    • Research
    • Authors
    • Newsletter
    • Tucson Meteor Cameras
  • Podcast
  • Education
    • Overview
    • Resource Center
    • Image Gallery
    • Summer School
    • Books
    • FAQs
    • Software
    • Additional Resources
    • ACME
    • Ambassadors
  • Shop
  • Calendar
  • Support
    • Overview
    • Donate Now
    • Sacred Space Astronomy
      • View Content
    • Fr. Coyne Fundraiser
    • Bequests / Trusts
    • The Foundation
      • Newsletters
      • Annual Reports
  • Press
  • Specola Vaticana
  • Contact
    • Contact
    • FAQs

Asteroid Day

By Robert Trembley  |  13 Jun 2015

Share:
  • Share on Facebook
  • Share on Twitter
  • Share on LinkedIn
  • Share via Email

Chelyabinsk ContrailAsteroids. Asteroids hit the Earth – this fact was made glaringly obvious by the impact event on February 15, 2013 over Chelyabinsk Oblast, Russia, that injured about 1600 people, and caused millions of dollars of property damage. This event was all over the news and social media – yet oddly, I’ve recently spoken with some people who had not heard it.

Asteroids hit the Earth more frequently then astronomers previously thought; using data from Earth-bound infra-sound detectors and satellites, it was discovered that between 2000-2013, Earth was hit 26 times by Asteroids, with explosions ranging from 1-600 kilotons; the 1945 Hiroshima bomb was 15 kilotons. Several of these impacts would have caused serious damage if they had exploded over a city, rather than harmlessly over the ocean or uninhabited regions.

Small asteroid impacts between 1994-2013 from objects 1 meter (3 feet) to 20 meters (60 feet) in size. Credit: Planetary Science

Recent advances in imaging and data processing have allowed astronomers to discover thousands of Near-Earth Asteroids, and hundreds of thousands of Main-Belt Asteroids; as of this writing, there are 1590 known Potentially-Hazardous Asteroids (PHAs). It’s estimated that there are a million or more Near-Earth Asteroids – we will never find them all at our current rate of discovery.

Cumulative total known near-Earth asteroids versus time. Blue area shows all near-Earth asteroids, red area shows only large near-Earth asteroids (1 km+). Credit: NASA/JPL-Caltech.

We have the technology to launch spacecraft that can find these Potentially Hazardous Asteroids, and we are devising methods to divert Earth-bound Asteroids. Dr. Ed Lu of the B612 Foundation says that it would only cost about as much as a freeway overpass to build a space telescope that could find these Asteroids, but as of this writing, NO world government has assigned the responsibility of Planetary Defense to any of their agencies.

Trees knocked over by the Tunguska blast. Photograph from the Soviet Academy of Science 1927 expedition led by Leonid Kulik

Over a hundred scientists, astronomers, astrophysicists, astronauts, entertainers, media personalities, and others have signed the Asteroid Day Declaration, calling for a one hundred-fold acceleration in the discovery and tracking of Near-Earth Asteroids, and the creation of a global awareness event, to be held each year on June 30th – the anniversary of the Tunguska Impact Event of 1908.

Asteroid Day is asking the public to sign their worldwide declaration; I have, I urge you to as well.

Share:
  • Share on Facebook
  • Share on Twitter
  • Share on LinkedIn
  • Share via Email

Sacred Space Astronomy

The Vatican Observatory’s official digital community and online magazine.

Become a Member

Recent Posts

The Stuff of Stars

By Robert Trembley  |  1 Jul 2022  |  Sacred Space Astronomy

Exploration above and below

By Deirdre Kelleghan  |  30 Jun 2022  |  Sacred Space Astronomy

In the Sky this Week – June 28, 2022

By Robert Trembley  |  28 Jun 2022  |  Sacred Space Astronomy

Agnes Mary Clerke, M31 and Thomas Aquinas

By Mr. Christopher Graney  |  25 Jun 2022  |  Sacred Space Astronomy

Archives

      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • August
      • June
      • March
      • January
      • November
      • October
      • December
      • November
      • April
      • May
      • January
      • December
      • September
      • May
      • March
      • December
      • November
      • February

More Posts by
Robert Trembley

The Stuff of Stars

By Robert Trembley  |  1 Jul 2022  |  Sacred Space Astronomy

In the Sky this Week – June 28, 2022

By Robert Trembley  |  28 Jun 2022  |  Sacred Space Astronomy

2023 Vatican Observatory Summer School

By Robert Trembley  |  22 Jun 2022  |  Sacred Space Astronomy

In the Sky this Week – June 21, 2022

By Robert Trembley  |  21 Jun 2022  |  Sacred Space Astronomy

From the Backyard (After a 20 Minute Drive): Embracing Failure – Embracing Grace.

By Fr. James Kurzynski, Robert Trembley  |  20 Jun 2022  |  Sacred Space Astronomy

A Mid-day Solstice

By Mr. Christopher Graney, Robert Trembley  |  18 Jun 2022

View More

Newsletter

Upcoming astronomical events, scientific breakthroughs, philosophical reflections… just a few reasons to subscribe to our newsletter!

  • *
Vatican Observatory
  • About
  • Telescopes
  • Latest
  • Podcast
  • Education
  • Shop
  • Calendar
  • Support
  • Press
  • Specola Vaticana
  • Contact
Privacy Policy  |   Cookie Policy  |   Disclosure Statement

Podcast:

  • Apple Podcasts Listen onApple Podcasts
  • Spotify Listen onSpotify
  • Google Podcasts Listen onGoogle Podcasts
  • Stitcher Listen onStitcher
  • Amazon Alexa Listen onAmazon Alexa
  • TuneIn Listen onTuneIn
Made by Longbeard