EarthTalk: Tracking And Deflecting Asteroids


Published:

Dear EarthTalk: It seems to me the single biggest potential “environmental” problem we could face—even bigger than global warming or a nuclear war—is a comet or asteroid striking the Earth. Do we currently track these space rocks and if so, how? And do we have any hope of deflecting them if they are headed right for us? —James McClintock, Austin, TX  

Environmental advocates don’t normally consider interstellar rocks to be their discipline, per se, but it is true that such an event could cause considerable environmental damage and even threaten the very existence of life on Earth. Indeed, when a 10-kilometer-wide asteroid struck the Earth some 66 million years ago, it wiped out three-quarters of the planet’s plant and animal species (including the dinosaurs) and caused damage to the environment that lasted centuries.

Humans weren’t around to witness the effects of that cataclysm, of course, but we do know that a large impact today could trigger massive firestorms, mudflows, earthquakes and tsunamis as well as acid rain, ozone depletion and rapid greenhouse warming—not to mention an “impact winter” whereby pulverized rock dust and other debris would blanket the skies and block the transmission of sunlight, effectively stopping photosynthesis around the globe. A big enough strike could effectively wipe out life on Earth.

NASA’s Planetary Defense Coordination Office (PDCO) is charged with providing timely and accurate communications on these threatening space rocks—including issuing warnings about potential impacts—and leading the coordination of federal response planning. Currently PDCO uses a combination of existing satellite and telescope technologies to track comets and asteroids but is currently developing a new space-based infrared telescope dubbed “NEOCam” (short for Near-Earth Object Camera) specifically for the purpose of surveying the solar system for large space rocks (larger than 140 meters across). But the project is far from a front-burner concern for NASA right now, and proponents are hoping Congress will earmark funds specifically to complete its development in the short term.

Meanwhile, the California-based B612 Foundation is focusing on detection of smaller asteroids. “The real gap is the 100 times as many asteroids smaller than 140 meters but still large enough to destroy things on the ground,” reports Ed Lu, the co-founder of B612. His team is currently working on a network of five to 10 telescope-equipped satellites to track these smaller space rocks and provide early warning services.

But just because we’re able to detect and track asteroids doesn’t mean we can deflect them. According to expert witness testimony at a 2013 Congressional hearing on the topic, NASA would need five years’ lead time—and a commitment of hundreds of millions of dollars—to be able to intercept an asteroid.

Despite this warning, we’ve made no progress in the intervening years. A June 2018 report from the Cabinet-level National Science and Technology Council warns that America remains unprepared for an asteroid impact event and urges the federal government to fund efforts to get ready for what astronomers say is inevitable at some point in the future. That said, unlike other environmental problems besetting us, there isn’t anything individuals can do to protect the planet from asteroid or comet strikes—except to urge their representatives in Congress to support legislation that funds programs and technologies designed to detect and deflect those incoming civilization busters.

CONTACTS:Environmental Damage from Asteroid and Comet Impacts”; PDCO; B612 Foundation.

EarthTalk® is produced by Roddy Scheer & Doug Moss for the 501(c)3 nonprofit EarthTalk. To donate, visit www.earthtalk.org. Send questions to: question@earthtalk.org.

See also:
The Best Medicine For My Climate Grief
It’s A Turbulent World. Stop Stressing And Adapt.

Edit Module
Edit ModuleShow Tags
Edit Module Edit ModuleShow Tags

Daily Astrology

September 23, 2019

During the predawn hours the Sun slips into Libra and Autumn begins. The Fall Equinox is a short-lived time of year when the hours of daylight and darkness are balanced. If you’ve been putting off preparations for the coming winter, set to it. The waning…
Edit ModuleShow Tags

Alternative Health Directory

Browse all listings »

Edit ModuleShow Tags
Edit ModuleShow Tags

Calendar

September 2019

It’s time for a workshop!  One plus one always equals two. In a similar fashion EFT plus Law of Attraction always equals effective and positive change. Teaching Emotional Freedom...

Cost: $40

Where:
21 Wiles Farm Road
Northboro, MA
View map »


Sponsor: Medicine My Way
Telephone: 508-523-7132
Website »

More information

In this 90 minute workshop you will find clarity in what brings you joy. You will create your personal vision statement that will help guide you to living a more satisfied, balanced life. This...

Cost: $25 early-bird till 9/20 ($30 after)

Where:
Sohum Yoga and Meditation Studio
30 Lyman Street, Suite 108B
Westborough shopping center
Westborough, MA  01581
View map »


Sponsor: www.SOHUM.org
Telephone: 508-329-3338
Contact Name: Ritu Kapur
Website »

More information

Witness the healing power of mediumship! Join New England's own trusted spirit medium Raylene Sousa and top UK medium Dominic Boag from Scotland for an afternoon of spirit messages. If...

Cost: $40

Where:
The Little Meetinghouse
723 Roosevelt Trail
Windham, ME  04062
View map »


Sponsor: Raylene Sousa Medium LLC
Telephone: 207-956-0220
Contact Name: Raylene Sousa
Website »

More information

Come shine with us! Join us in harmony and in our goal to bring the light of Spiritualism forward to all those who are searching.

Where:
VFW Post 2597
775 Boston Rd, Rt 3A
Billerica, MA
View map »


Sponsor: The Spiritualist Fellowship Church Of New England
Website »

More information

Show More...
Show Less...

2nd and 4th Monday of every month This psychic message circle is for anyone wishing to raise their connection using their psychic centers known as the “clairs.” Learn how to use...

Cost: $20

Where:
Messages From Heaven Healing and Learning Center
646 Central Street
Suite 3
Leominster, MA
View map »


Website »

More information

Show More...
Show Less...

Members of the Reflexology Association of NH will be offering “mini” hand or foot reflexology sessions at the Salt Cave within Bien Soigne in honor of World Reflexology Week.

Cost: Donations suggested $15 - $20

Where:
Bien Soigne Salt Cave
350 North Broadway
Salem, NH  03079
View map »


Sponsor: Reflexology Association of NH
Website »

More information

Show More...
Show Less...

September 25–October 29, 2019 Expert Tai Chi instructor and Qigong Master Instructor Terry Dunn will be giving a total of four five-day intensive workshops in October 2019 at Eastover...

Where:
Eastover Estate & Retreat
430 East Street
Lenox, MA  01240
View map »


Telephone: 866-264-5139
Website »

More information

Show More...
Show Less...

September 26–29 This training at the Center for Mindfulness and Mindfulness-Based Cognitive Therapy (MBCT) uses mindfulness meditation and cognitive therapy to break the cycle of...

Cost: $1,390

Where:
Center for Mindfulness and Compassion
1035 Cambridge St, Suite 21A
Cambridge, MA  02141
View map »


Sponsor: Center for Mindfulness and Compassion
Telephone: 617-591-6132
Contact Name: Center for Mindfulness and Compassion
Website »

More information

Come detox, relax and renew yourself for the fall in our sanctuary! We have an intimate gathering of great readers and healers providing services at sampler rates to enjoy their services while...

Cost: $60: 3 Pack Service Special; $25: Single Service

Where:
Healing Power Of Flowers—Heaven and Earth
68 Stiles Rd
Salem, NH  03079
View map »


Sponsor: The Healing Power of Flowers - Heaven and Earth
Telephone: 603-275-7688
Contact Name: Stacey Smith
Website »

More information

Mirabai Starr was an adjunct professor of Philosophy and World Religions at the University of New Mexico-Taos for 20 years. Her emphasis has always been on making connections between the perennial...

Cost: $20

Where:
First Parish in Lexington
7 Harrington Road
Lexington, MA  02420
View map »


Sponsor: Lexington Community Education
Telephone: 781-862-8043
Contact Name: Craig Hall
Website »

More information

Show More...
Show Less...

Maryellen Labelle, David Sholemson and Steve Cunningham are excited to announce Qigong for Inner Peace teacher training fall term 2019. This 50 hour certification training is appropriate for a wide...

Cost: $1100 / $800 early registration

Where:
Yoga Depot
17 Depot Square
Lexington, MA  02420
View map »


Sponsor: Qigong for Inner Peace
Telephone: 617-721-7215
Contact Name: Maryellen Labelle / David Sholemson
Website »

More information

Join life coach Cheryl Richardson and her husband, Michael Gerrish, a psychotherapist and gifted intuitive, for a special evening designed to help you upgrade your life! During this event,...

Cost: $35

Where:
Circles of Wisdom
386 Merrimack Street
Suite 1A
Methuen, MA  01844
View map »


Sponsor: Circles of Wisdom
Telephone: 978-474-8010
Contact Name: Cathy Kneeland
Website »

More information

This Dating Program is the follow-up to Kerri Morrison's workshop, Deliberate Dating: 5 Keys to Successful Online Romance; held Friday, August 16th, 2019 from 6:30-7:30pm. View that event...

Cost: $199

Where:
Awaken Holistic Counseling Services
2 Liberty St., Unit 2L
Newburyport, MA  01950
View map »


Sponsor: Awaken Holistic Counseling Services, LLC
Telephone: 978-255-7893
Contact Name: Kerri Morrison
Website »

More information

Show More...
Show Less...

Learn Reiki—revitalizing self-care and healing in the palm of your hands. Facilitated by Lou Orsan, Reiki Shihan (master teacher.) This one-day class covers the...

Cost: $150

Where:
Northeast Reiki Center
61 Nicholas Road
Framingham, MA  01701
View map »


Sponsor: Northeast Reiki Center
Telephone: 508-808-5696
Contact Name: Lou Orsan
Website »

More information

With Laura Haley, IET Master Instructor Trainer  This class provides you with everything you need to conduct a powerful Integrated Energy Therapy session on yourself or others (either in...

Where:
Circles of Wisdom
Methuen, MA


Telephone: (978) 474-8010
Website »

More information

Learn the benefits of yoga for families as well as how to develop character in children to get them more focused, respectful, and confident before returning back to school this fall! This class...

Cost: $45 early bird till 9/25 (includes child and a parent), $50 after

Where:
Sohum Yoga and Meditation Studio
30 Lyman Street, Suite 108B
Westborough shopping center
Westborough, MA  01581
View map »


Sponsor: www.SOHUM.org
Telephone: 508-329-3338
Contact Name: Ritu Kapur
Website »

More information

September 28–29 Saturday 10 am Registration; 10 am–5 pm  Sunday 10 am–5 pm This practitioner training takes place over 2 days and offers students the opportunity to...

Cost: Course Fee: $450; Recalibration Appointment: $333

Where:
The Hampton Inn Coventry Warwick
850 Centre Of New England Boulevard
Coventry, RI
View map »


Telephone: 617-366-6042
Website »

More information

September 28–29 Learn hands-on techniques for the cervical, thoracic and lumbar spine, as well as the sacrum, psoas and ilium. Leave with tools you can use right away. Coming in...

Where:
Downeast School of Massage
Waldoboro, ME


Telephone: (617) 678-8920
Website »

More information

Learn to overcome spinal tensions through therapeutic postures, designed to decompress your spine and relieve pain. Taught by a certified yoga therapist, classes bring you through poses...

Cost: 5/$50

Where:
Bliss Through Yoga
484 Bedford St
East Bridgewater, MA  02333
View map »


Telephone: 508-331-3564
Contact Name: Janice O'Brien
Website »

More information

Show More...
Show Less...
Edit ModuleShow Tags
Edit Module Edit ModuleShow Tags