🆕新商品！🆕
MONTHLY NEW DARTS LIFE Vol.8
🛒商品ページ buff.ly/reQfoRr
今回のプレイヤーインタビューは 安食賢一、大久保李佳、川島淳、森勇樹選手！
ダーツ歴の深い4選手をクローズアップしています！
畦元隆成選手/後藤智弥選手が奮闘したPDC2025のレポートや、懐かしのMJトーナメント2004なども掲載。
今月号も充実した内容となっていますので、ぜひ手に取って読んでみてくださいね♪
#ダーツハイブ #ダーツ
MONTHLY NEW DARTS LIFE Vol.8
🛒商品ページ buff.ly/reQfoRr
今回のプレイヤーインタビューは 安食賢一、大久保李佳、川島淳、森勇樹選手！
ダーツ歴の深い4選手をクローズアップしています！
畦元隆成選手/後藤智弥選手が奮闘したPDC2025のレポートや、懐かしのMJトーナメント2004なども掲載。
今月号も充実した内容となっていますので、ぜひ手に取って読んでみてくださいね♪
#ダーツハイブ #ダーツ
July 31, 2025 at 7:00 AM
🆕新商品！🆕
MONTHLY NEW DARTS LIFE Vol.8
🛒商品ページ buff.ly/reQfoRr
今回のプレイヤーインタビューは 安食賢一、大久保李佳、川島淳、森勇樹選手！
ダーツ歴の深い4選手をクローズアップしています！
畦元隆成選手/後藤智弥選手が奮闘したPDC2025のレポートや、懐かしのMJトーナメント2004なども掲載。
今月号も充実した内容となっていますので、ぜひ手に取って読んでみてくださいね♪
#ダーツハイブ #ダーツ
MONTHLY NEW DARTS LIFE Vol.8
🛒商品ページ buff.ly/reQfoRr
今回のプレイヤーインタビューは 安食賢一、大久保李佳、川島淳、森勇樹選手！
ダーツ歴の深い4選手をクローズアップしています！
畦元隆成選手/後藤智弥選手が奮闘したPDC2025のレポートや、懐かしのMJトーナメント2004なども掲載。
今月号も充実した内容となっていますので、ぜひ手に取って読んでみてくださいね♪
#ダーツハイブ #ダーツ
What a fantastic week we have had in Stellenbosch for #PDC2025! You can really sense how much #PlanetaryDefense has advanced in the last years and how many people is now involved in it!
Looking already forward for #PDC2027 in #Montreal!!!
@operations.esa.int
Looking already forward for #PDC2027 in #Montreal!!!
@operations.esa.int
May 11, 2025 at 3:38 PM
What a fantastic week we have had in Stellenbosch for #PDC2025! You can really sense how much #PlanetaryDefense has advanced in the last years and how many people is now involved in it!
Looking already forward for #PDC2027 in #Montreal!!!
@operations.esa.int
Looking already forward for #PDC2027 in #Montreal!!!
@operations.esa.int
The 1963 August 3 airburst over the southern ocean was the largest impact after Tunguska and before Chelyabinsk: aquarid.physics.uwo.ca/infra_pub/Es...
But nobody was there, so it was not a problem.
And, once more, the #PDC2025 hypothetical impact scenario was only a test.
But nobody was there, so it was not a problem.
And, once more, the #PDC2025 hypothetical impact scenario was only a test.
aquarid.physics.uwo.ca
May 9, 2025 at 6:30 PM
The 1963 August 3 airburst over the southern ocean was the largest impact after Tunguska and before Chelyabinsk: aquarid.physics.uwo.ca/infra_pub/Es...
But nobody was there, so it was not a problem.
And, once more, the #PDC2025 hypothetical impact scenario was only a test.
But nobody was there, so it was not a problem.
And, once more, the #PDC2025 hypothetical impact scenario was only a test.
For anyone wondering:
The #PDC2025 asteroid impact hypothetical scenario progresses with the possibility of a partial deflection; moving the asteroid south to airburst harmlessly over the southern ocean.
Compare to what actually happened on 1963 August 3: link.springer.com/article/10.1...
The #PDC2025 asteroid impact hypothetical scenario progresses with the possibility of a partial deflection; moving the asteroid south to airburst harmlessly over the southern ocean.
Compare to what actually happened on 1963 August 3: link.springer.com/article/10.1...
Reanalysis of the Historic AFTAC Bolide Infrasound Database - Discover Space
We have recently digitized and partially reanalyzed the historic bolide infrasonic database. These 10 events were originally detected by the U.S. Air Force Technical Applications Center (AFTAC) from ∼...
link.springer.com
May 9, 2025 at 6:29 PM
For anyone wondering:
The #PDC2025 asteroid impact hypothetical scenario progresses with the possibility of a partial deflection; moving the asteroid south to airburst harmlessly over the southern ocean.
Compare to what actually happened on 1963 August 3: link.springer.com/article/10.1...
The #PDC2025 asteroid impact hypothetical scenario progresses with the possibility of a partial deflection; moving the asteroid south to airburst harmlessly over the southern ocean.
Compare to what actually happened on 1963 August 3: link.springer.com/article/10.1...
#PDC2025 also had multiple comments about "planetary defense" as a term being confusing, as well as far too military.
And that would be why I personally prefer to simply talk about the impact hazard.
And that would be why I personally prefer to simply talk about the impact hazard.
May 9, 2025 at 10:48 AM
#PDC2025 also had multiple comments about "planetary defense" as a term being confusing, as well as far too military.
And that would be why I personally prefer to simply talk about the impact hazard.
And that would be why I personally prefer to simply talk about the impact hazard.
#PDC2025 wraps up with a question-and-answer session.
Question: "What about SpaceX?"
Answer: SpaceX has no plans for doing anything beyond Earth orbit. It just sells rockets to the agencies that do.
Question: "What about SpaceX?"
Answer: SpaceX has no plans for doing anything beyond Earth orbit. It just sells rockets to the agencies that do.
May 9, 2025 at 10:47 AM
#PDC2025 wraps up with a question-and-answer session.
Question: "What about SpaceX?"
Answer: SpaceX has no plans for doing anything beyond Earth orbit. It just sells rockets to the agencies that do.
Question: "What about SpaceX?"
Answer: SpaceX has no plans for doing anything beyond Earth orbit. It just sells rockets to the agencies that do.
#PDC2025 continues today with discussion of the importance of providing accurate information about the impact hazard: iaa.4hdt.ro/event/1/cont... .
From things like real images of actual asteroids to "don't immediately run to the window to see what that flash was" if there is another Chelyabinsk.
From things like real images of actual asteroids to "don't immediately run to the window to see what that flash was" if there is another Chelyabinsk.
9th IAA PLANETARY DEFENSE CONFERENCE 2025
Welcome to IAA Conferences Portal
iaa.4hdt.ro
May 9, 2025 at 8:24 AM
#PDC2025 continues today with discussion of the importance of providing accurate information about the impact hazard: iaa.4hdt.ro/event/1/cont... .
From things like real images of actual asteroids to "don't immediately run to the window to see what that flash was" if there is another Chelyabinsk.
From things like real images of actual asteroids to "don't immediately run to the window to see what that flash was" if there is another Chelyabinsk.
Last day of #PDC2025! What a great conference we are having! We are starting today with a session on public communication on planetary defence. @djsnm.extwitter.link is with us and making great contributions to the discussion!
@operations.esa.int
@operations.esa.int
May 9, 2025 at 7:39 AM
Last day of #PDC2025! What a great conference we are having! We are starting today with a session on public communication on planetary defence. @djsnm.extwitter.link is with us and making great contributions to the discussion!
@operations.esa.int
@operations.esa.int
It is striking to read this at the same time that #PDC2025 is having a discussion about how to effectively address disinformation about asteroid impacts.
May 9, 2025 at 7:07 AM
It is striking to read this at the same time that #PDC2025 is having a discussion about how to effectively address disinformation about asteroid impacts.
#PDC2025 features a few talks about having small satellites left on orbit to fly past any asteroids that may require investigation.
Precedents here are Comet Interceptor and also Chang'e 2 flying by Toutatis in 2012; although it was not designed for that.
Precedents here are Comet Interceptor and also Chang'e 2 flying by Toutatis in 2012; although it was not designed for that.
May 8, 2025 at 9:53 AM
#PDC2025 features a few talks about having small satellites left on orbit to fly past any asteroids that may require investigation.
Precedents here are Comet Interceptor and also Chang'e 2 flying by Toutatis in 2012; although it was not designed for that.
Precedents here are Comet Interceptor and also Chang'e 2 flying by Toutatis in 2012; although it was not designed for that.
Occultation data suggests that Dimorphos is considerably less dense than Didymos, or at least was before the #DARTMission impact.
Need more data; for which the #HeraMission is on the way.
#PDC2025
Need more data; for which the #HeraMission is on the way.
#PDC2025
May 8, 2025 at 7:24 AM
Occultation data suggests that Dimorphos is considerably less dense than Didymos, or at least was before the #DARTMission impact.
Need more data; for which the #HeraMission is on the way.
#PDC2025
Need more data; for which the #HeraMission is on the way.
#PDC2025
Steve Chesley describes the heliocentric orbit change for Didymos from the #DARTMission impact, rather that the orbit change of Dimorphos about Didymos.
~12 microns/second, measured by occultation timing.
Lots of science from chasing shadows.
#PDC2025
~12 microns/second, measured by occultation timing.
Lots of science from chasing shadows.
#PDC2025
May 8, 2025 at 7:21 AM
Steve Chesley describes the heliocentric orbit change for Didymos from the #DARTMission impact, rather that the orbit change of Dimorphos about Didymos.
~12 microns/second, measured by occultation timing.
Lots of science from chasing shadows.
#PDC2025
~12 microns/second, measured by occultation timing.
Lots of science from chasing shadows.
#PDC2025
#PDC2025 resumes with @schmemela.bsky.social leading discussion of different asteroid deflection methods; including both the #DARTMission & other work on kinetic impact deflection and things like gravity tractor deflection.
May 8, 2025 at 7:12 AM
#PDC2025 resumes with @schmemela.bsky.social leading discussion of different asteroid deflection methods; including both the #DARTMission & other work on kinetic impact deflection and things like gravity tractor deflection.
And now, our colleague Maxime Devogele speaks at #PDC2025 of the workshop that we had last year at ESA’s #ESOC on the determination of the size of NEOs.
@operations.esa.int
@operations.esa.int
May 7, 2025 at 1:16 PM
And now, our colleague Maxime Devogele speaks at #PDC2025 of the workshop that we had last year at ESA’s #ESOC on the determination of the size of NEOs.
@operations.esa.int
@operations.esa.int
Our astronomer Marco Micheli now presenting at #PDC2025 the NEO follow up activities performed at ESA PDO’s NEO Coordination Centre #NEOCC.
@operations.esa.int
@operations.esa.int
May 7, 2025 at 12:06 PM
Our astronomer Marco Micheli now presenting at #PDC2025 the NEO follow up activities performed at ESA PDO’s NEO Coordination Centre #NEOCC.
@operations.esa.int
@operations.esa.int
Thobekile Sandra Ngwane, University of Cape Town:
"The Rapid-Response Fully-Automated NEA Follow-Up Program with the SAAO's 1-m Lesedi Telescope" - iaa.4hdt.ro/event/1/cont...
#PDC2025
"The Rapid-Response Fully-Automated NEA Follow-Up Program with the SAAO's 1-m Lesedi Telescope" - iaa.4hdt.ro/event/1/cont...
#PDC2025
9th IAA PLANETARY DEFENSE CONFERENCE 2025
Welcome to IAA Conferences Portal
iaa.4hdt.ro
May 7, 2025 at 11:38 AM
Thobekile Sandra Ngwane, University of Cape Town:
"The Rapid-Response Fully-Automated NEA Follow-Up Program with the SAAO's 1-m Lesedi Telescope" - iaa.4hdt.ro/event/1/cont...
#PDC2025
"The Rapid-Response Fully-Automated NEA Follow-Up Program with the SAAO's 1-m Lesedi Telescope" - iaa.4hdt.ro/event/1/cont...
#PDC2025
. @asrivkin.bsky.social et al. at #PDC2025 : "JWST As a Tool for Early Characterization of Potential Impactors" - iaa.4hdt.ro/event/1/cont...
Considering #2024YR4 and other objects.
Considering #2024YR4 and other objects.
9th IAA PLANETARY DEFENSE CONFERENCE 2025
We will present the capabilities of JWST for early characterization of impactor sizes, including a study of how it would have performed in previous PDC and TTX impactor scenarios, and suggest how a program could be designed to trigger JWST observations in case of a credible impactor threat.
iaa.4hdt.ro
May 7, 2025 at 11:37 AM
. @asrivkin.bsky.social et al. at #PDC2025 : "JWST As a Tool for Early Characterization of Potential Impactors" - iaa.4hdt.ro/event/1/cont...
Considering #2024YR4 and other objects.
Considering #2024YR4 and other objects.
Discussions follow at #PDC2025 with a panel on the International Year of Asteroid Awareness and Planetary Defence, 2029.
@operations.esa.int
@operations.esa.int
May 7, 2025 at 10:20 AM
Discussions follow at #PDC2025 with a panel on the International Year of Asteroid Awareness and Planetary Defence, 2029.
@operations.esa.int
@operations.esa.int
#PDC2025 reviews the impact of satellite streaks on the asteroid discovery surveys.
They continue to be a nuisance; but are manageable. And they remain concentrated into twilight data where detections were already tricky.
They continue to be a nuisance; but are manageable. And they remain concentrated into twilight data where detections were already tricky.
May 7, 2025 at 8:22 AM
#PDC2025 reviews the impact of satellite streaks on the asteroid discovery surveys.
They continue to be a nuisance; but are manageable. And they remain concentrated into twilight data where detections were already tricky.
They continue to be a nuisance; but are manageable. And they remain concentrated into twilight data where detections were already tricky.
Krisztián Sárneczky, discoverer of 3 very small asteroids before they impacted Earth, discusses his current project from the Piszkéstető Station observatory outside of Budapest.
#PDC2025
#PDC2025
May 7, 2025 at 7:44 AM
Krisztián Sárneczky, discoverer of 3 very small asteroids before they impacted Earth, discusses his current project from the Piszkéstető Station observatory outside of Budapest.
#PDC2025
#PDC2025
Good morning from Stellenbosch! Our colleague Rainer Kresken is presenting this morning ESA’s NEOCC survey strategies at #PDC2025.
@operations.esa.int
@operations.esa.int
May 7, 2025 at 7:37 AM
Good morning from Stellenbosch! Our colleague Rainer Kresken is presenting this morning ESA’s NEOCC survey strategies at #PDC2025.
@operations.esa.int
@operations.esa.int
Day 3 of #PDC2025 begins with status reports on asteroid discovery surveys; both the current ones and upcoming new surveys like those by @vrubinobs.bsky.social and NEO Surveyor.
How to find all the asteroids.
How to find all the asteroids.
May 7, 2025 at 7:08 AM
Day 3 of #PDC2025 begins with status reports on asteroid discovery surveys; both the current ones and upcoming new surveys like those by @vrubinobs.bsky.social and NEO Surveyor.
How to find all the asteroids.
How to find all the asteroids.