June 30, 2026 at 6:35 PM
Happy #AsteroidDay! 🪨
But why today of all days? Find out here, along with eight other key dates in asteroid history! 👉
www.esa.int/Space_Safety...
But why today of all days? Find out here, along with eight other key dates in asteroid history! 👉
www.esa.int/Space_Safety...
June 30, 2026 at 8:24 AM
Happy #AsteroidDay! 🪨
But why today of all days? Find out here, along with eight other key dates in asteroid history! 👉
www.esa.int/Space_Safety...
But why today of all days? Find out here, along with eight other key dates in asteroid history! 👉
www.esa.int/Space_Safety...
Congratulations to Dr. Brian May, astrophysicist, Queen guitarist, and #AsteroidDay cofounder, on receiving the National Space Society’s 2020 Space Pioneer Award. He joins B612 cofounder and Apollo 9 astronaut #RustySchweickart, who received the award in 2009 for Historic Space Achievement.
September 3, 2026 at 6:53 PM
Congratulations to Dr. Brian May, astrophysicist, Queen guitarist, and #AsteroidDay cofounder, on receiving the National Space Society’s 2020 Space Pioneer Award. He joins B612 cofounder and Apollo 9 astronaut #RustySchweickart, who received the award in 2009 for Historic Space Achievement.
Asteroids regularly slam into Earth, but in 2022 a little bit of Earth slammed into an asteroid - in the shape of NASA's DART spacecraft hitting Dimorphos. This autumn ESA's Hera spacecraft reaches this same body to try and find out: could we save Earth from an incoming asteroid? #AsteroidDay
June 30, 2026 at 5:48 PM
Asteroids regularly slam into Earth, but in 2022 a little bit of Earth slammed into an asteroid - in the shape of NASA's DART spacecraft hitting Dimorphos. This autumn ESA's Hera spacecraft reaches this same body to try and find out: could we save Earth from an incoming asteroid? #AsteroidDay
June 30th-Asteroid Day #slydoesholidays #cat #cats #catsofbluesky #catsoftheday #catsoftheworld #catlover #pet #photography #art #photooftheday #kc #asteroid #asteroidday
July 1, 2025 at 12:02 AM
June 30th-Asteroid Day #slydoesholidays #cat #cats #catsofbluesky #catsoftheday #catsoftheworld #catlover #pet #photography #art #photooftheday #kc #asteroid #asteroidday
From dinosaur extinction to planetary defense plans asteroids matter more than you think. #InternationalAsteroidDay #AsteroidDay
#PlanetaryDefense #SpaceAwareness
#AsteroidImpact #NASA #SpaceScience
#AsteroidAwareness #SpaceRocks
#myholidayworld #holiday365
#PlanetaryDefense #SpaceAwareness
#AsteroidImpact #NASA #SpaceScience
#AsteroidAwareness #SpaceRocks
#myholidayworld #holiday365
June 30, 2025 at 11:53 AM
From dinosaur extinction to planetary defense plans asteroids matter more than you think. #InternationalAsteroidDay #AsteroidDay
#PlanetaryDefense #SpaceAwareness
#AsteroidImpact #NASA #SpaceScience
#AsteroidAwareness #SpaceRocks
#myholidayworld #holiday365
#PlanetaryDefense #SpaceAwareness
#AsteroidImpact #NASA #SpaceScience
#AsteroidAwareness #SpaceRocks
#myholidayworld #holiday365
February 23, 2025 at 3:30 AM
On June 23, a flyby of near-Earth asteroid 2025LT traveled so closely to Earth that it was only 1% of the Earth-Sun distance away from our planet. Because this asteroid was traveling so close, it was moving incredibly fast — 14 km/s — and therefore tricky to catch! #AsteroidDay 🧪
June 30, 2025 at 11:02 PM
On June 23, a flyby of near-Earth asteroid 2025LT traveled so closely to Earth that it was only 1% of the Earth-Sun distance away from our planet. Because this asteroid was traveling so close, it was moving incredibly fast — 14 km/s — and therefore tricky to catch! #AsteroidDay 🧪
Happy #AsteroidDay ! To celebrate here's something from a little over two years ago when asteroid (1) Ceres was passing in front of spiral galaxy Messier 100. 🔭
June 30, 2025 at 6:53 PM
Happy #AsteroidDay ! To celebrate here's something from a little over two years ago when asteroid (1) Ceres was passing in front of spiral galaxy Messier 100. 🔭
An oldie but happy #asteroidday !
This was one of my first posters and still have it in my heart
#sciart #art
This was one of my first posters and still have it in my heart
#sciart #art
June 30, 2025 at 9:17 AM
An oldie but happy #asteroidday !
This was one of my first posters and still have it in my heart
#sciart #art
This was one of my first posters and still have it in my heart
#sciart #art
Chaos, panic, total devastation: asteroids in films are scary, and only an unlikely, heroic mission can save humanity 🚀 ☄️
But what would happen if an asteroid hurtled towards us for real?
On the occasion of #AsteroidDay, tune in to #ChasingStarlight to find out: www.youtube.com/watch?v=BaON...
🔭🧪
But what would happen if an asteroid hurtled towards us for real?
On the occasion of #AsteroidDay, tune in to #ChasingStarlight to find out: www.youtube.com/watch?v=BaON...
🔭🧪
June 30, 2025 at 1:01 PM
Chaos, panic, total devastation: asteroids in films are scary, and only an unlikely, heroic mission can save humanity 🚀 ☄️
But what would happen if an asteroid hurtled towards us for real?
On the occasion of #AsteroidDay, tune in to #ChasingStarlight to find out: www.youtube.com/watch?v=BaON...
🔭🧪
But what would happen if an asteroid hurtled towards us for real?
On the occasion of #AsteroidDay, tune in to #ChasingStarlight to find out: www.youtube.com/watch?v=BaON...
🔭🧪
#asteroidday Today in 1908, a ca. 50-m-sized asteroid slammed into the Earth's atmosphere, luckily (for most of people alive then) in sparsely-populated Siberia, resulting in a multi-Megaton (up to 50) explosion in the atmosphere, leveling 1000s of square km of forest. The "Tunguska event"... (1/7)
June 30, 2025 at 11:33 AM
#asteroidday Today in 1908, a ca. 50-m-sized asteroid slammed into the Earth's atmosphere, luckily (for most of people alive then) in sparsely-populated Siberia, resulting in a multi-Megaton (up to 50) explosion in the atmosphere, leveling 1000s of square km of forest. The "Tunguska event"... (1/7)
i should have posted this yesterday of course (on #asteroidday), but this is a very nice review (by penny wozniakiewicz) of my little book 'target earth' (@mitpress.bsky.social), in the july issue of bbc sky at night magazine 🤗⭐📚🔭
July 1, 2025 at 3:33 PM
i should have posted this yesterday of course (on #asteroidday), but this is a very nice review (by penny wozniakiewicz) of my little book 'target earth' (@mitpress.bsky.social), in the july issue of bbc sky at night magazine 🤗⭐📚🔭
One day late for #AsteroidDay, I discovered a video of a presentation I gave about airbursts including Tunguska.
July 2, 2026 at 4:21 AM
One day late for #AsteroidDay, I discovered a video of a presentation I gave about airbursts including Tunguska.
Happy #AsteroidDay: On the morning of June 30, 1908, eyewitnesses reported a large fireball crossing the sky above #Tunguska in Siberia, traveling at a speed of about 33,500 miles per hour. #TheColourOutofSpace wp.me/p3ihHu-1Xl #Lovecraft #histci
June 30, 2025 at 12:14 PM
Happy #AsteroidDay: On the morning of June 30, 1908, eyewitnesses reported a large fireball crossing the sky above #Tunguska in Siberia, traveling at a speed of about 33,500 miles per hour. #TheColourOutofSpace wp.me/p3ihHu-1Xl #Lovecraft #histci
Let’s say the action movie cliché has come to pass: A huge asteroid is barreling its way toward our planet. Can humanity be saved?
Yes—with a carefully detonated nuclear warhead, suggests a unique study published in 2024.
Learn more on #AsteroidDay: https://scim.ag/44xOe6C
Yes—with a carefully detonated nuclear warhead, suggests a unique study published in 2024.
Learn more on #AsteroidDay: https://scim.ag/44xOe6C
June 30, 2026 at 10:50 PM
Let’s say the action movie cliché has come to pass: A huge asteroid is barreling its way toward our planet. Can humanity be saved?
Yes—with a carefully detonated nuclear warhead, suggests a unique study published in 2024.
Learn more on #AsteroidDay: https://scim.ag/44xOe6C
Yes—with a carefully detonated nuclear warhead, suggests a unique study published in 2024.
Learn more on #AsteroidDay: https://scim.ag/44xOe6C
👨🚀 How to keep astronauts safe on an asteroid mission?
☄️ @esa.int experts at #AsteroidDay in Luxembourg discussed space medicine and spaceflight simulations.
Their research enables medical applications, such as remote monitoring & healthcare for extreme environments.
▶️ youtu.be/HI5RQeVbLkI?...
☄️ @esa.int experts at #AsteroidDay in Luxembourg discussed space medicine and spaceflight simulations.
Their research enables medical applications, such as remote monitoring & healthcare for extreme environments.
▶️ youtu.be/HI5RQeVbLkI?...
Asteroid Day Festival 2025
YouTube video by Asteroid Day
youtu.be
June 30, 2025 at 11:00 AM
👨🚀 How to keep astronauts safe on an asteroid mission?
☄️ @esa.int experts at #AsteroidDay in Luxembourg discussed space medicine and spaceflight simulations.
Their research enables medical applications, such as remote monitoring & healthcare for extreme environments.
▶️ youtu.be/HI5RQeVbLkI?...
☄️ @esa.int experts at #AsteroidDay in Luxembourg discussed space medicine and spaceflight simulations.
Their research enables medical applications, such as remote monitoring & healthcare for extreme environments.
▶️ youtu.be/HI5RQeVbLkI?...
#PPOD: Today is #AsteroidDay, the anniversary of the Tunguska Event, when we raise awareness about potentially hazardous asteroids and their possible impacts on Earth. We also celebrate the addition of a new tool in our quest for planetary defense -- @vrubinobs.bsky.social 🧪 🔭 👩🔬
June 30, 2025 at 3:11 PM
#PPOD: Today is #AsteroidDay, the anniversary of the Tunguska Event, when we raise awareness about potentially hazardous asteroids and their possible impacts on Earth. We also celebrate the addition of a new tool in our quest for planetary defense -- @vrubinobs.bsky.social 🧪 🔭 👩🔬
Rock anthem… >^≈^< #comics #webcomic #OTD #AsteroidDay #AsteroidDay2025 #astrophysics #Luxembourg #music #Queen ☄️
June 30, 2025 at 12:42 PM
Rock anthem… >^≈^< #comics #webcomic #OTD #AsteroidDay #AsteroidDay2025 #astrophysics #Luxembourg #music #Queen ☄️
Hey! It’s #AsteroidDay 💥 Why not celebrate the traditional way—by backing a #crowdfund for a set of cosmic #enamelpins? The campaign even includes a #Tunguska sticker, tipping a hat to the explosive inspiration behind Asteroid Day itself. | LINK: shorturl.at/LJm1i | #sciArt #dinoArt #paleoArt
June 30, 2025 at 7:43 PM
Hey! It’s #AsteroidDay 💥 Why not celebrate the traditional way—by backing a #crowdfund for a set of cosmic #enamelpins? The campaign even includes a #Tunguska sticker, tipping a hat to the explosive inspiration behind Asteroid Day itself. | LINK: shorturl.at/LJm1i | #sciArt #dinoArt #paleoArt
Tunguska holds the moment before the airburst: one heated rock, a thin blue atmosphere, and the quiet scale of planetary risk.
#Space #Art #SciArt #Cosmic #AsteroidDay #Astronomy
#Space #Art #SciArt #Cosmic #AsteroidDay #Astronomy
Tunguska
shirtsfrenzy.com
June 21, 2026 at 5:00 PM
Tunguska holds the moment before the airburst: one heated rock, a thin blue atmosphere, and the quiet scale of planetary risk.
#Space #Art #SciArt #Cosmic #AsteroidDay #Astronomy
#Space #Art #SciArt #Cosmic #AsteroidDay #Astronomy
🚨FIRST OF OUR 2026 @AsteroidDay TALKS🚨
"SEARCHING FOR METEORITES IN ANTARCTICA WITH #ANSMET"
Next Friday 22 May at 12h CEST/10h UTC, talk by Dr. Lysa Chizmadia at @ice-csic.bsky.social @ieec.cat. Explaining the unique experience of being an #ANSMET team member
➡️🌠 youtube.com/live/7V3gf4K...
"SEARCHING FOR METEORITES IN ANTARCTICA WITH #ANSMET"
Next Friday 22 May at 12h CEST/10h UTC, talk by Dr. Lysa Chizmadia at @ice-csic.bsky.social @ieec.cat. Explaining the unique experience of being an #ANSMET team member
➡️🌠 youtube.com/live/7V3gf4K...
May 18, 2026 at 12:46 PM
🚨FIRST OF OUR 2026 @AsteroidDay TALKS🚨
"SEARCHING FOR METEORITES IN ANTARCTICA WITH #ANSMET"
Next Friday 22 May at 12h CEST/10h UTC, talk by Dr. Lysa Chizmadia at @ice-csic.bsky.social @ieec.cat. Explaining the unique experience of being an #ANSMET team member
➡️🌠 youtube.com/live/7V3gf4K...
"SEARCHING FOR METEORITES IN ANTARCTICA WITH #ANSMET"
Next Friday 22 May at 12h CEST/10h UTC, talk by Dr. Lysa Chizmadia at @ice-csic.bsky.social @ieec.cat. Explaining the unique experience of being an #ANSMET team member
➡️🌠 youtube.com/live/7V3gf4K...
It’s International #AsteroidDay! According to the #UN, the occasion is meant to help raise public awareness about potential asteroid impact hazards. www.un.org/en/observanc...
It’s also a great time to learn about some fascinating science studying giant space rocks. 🔭🧪🧵
It’s also a great time to learn about some fascinating science studying giant space rocks. 🔭🧪🧵
Bennu's Full Rotation
Alt: Black and white video of the asteroid Bennu rotating.
static.klipy.com
June 30, 2026 at 4:45 PM
It’s International #AsteroidDay! According to the #UN, the occasion is meant to help raise public awareness about potential asteroid impact hazards. www.un.org/en/observanc...
It’s also a great time to learn about some fascinating science studying giant space rocks. 🔭🧪🧵
It’s also a great time to learn about some fascinating science studying giant space rocks. 🔭🧪🧵
🍕Save the date for the last #PizzaSeminar of the season!
☄️Celebrate #AsteroidDay discussing the amazing pictures by @vrubinobs.bsky.social, with a seminar by @joseptrigo.bsky.social.
📆27 June at 12 pm ➡️https://www.youtube.com/live/n9UOPLXBNik?si=Ty3GSRbzLVSE4gSn
@ieec.cat @csiccat.bsky.social
☄️Celebrate #AsteroidDay discussing the amazing pictures by @vrubinobs.bsky.social, with a seminar by @joseptrigo.bsky.social.
📆27 June at 12 pm ➡️https://www.youtube.com/live/n9UOPLXBNik?si=Ty3GSRbzLVSE4gSn
@ieec.cat @csiccat.bsky.social
June 25, 2025 at 2:22 PM
🍕Save the date for the last #PizzaSeminar of the season!
☄️Celebrate #AsteroidDay discussing the amazing pictures by @vrubinobs.bsky.social, with a seminar by @joseptrigo.bsky.social.
📆27 June at 12 pm ➡️https://www.youtube.com/live/n9UOPLXBNik?si=Ty3GSRbzLVSE4gSn
@ieec.cat @csiccat.bsky.social
☄️Celebrate #AsteroidDay discussing the amazing pictures by @vrubinobs.bsky.social, with a seminar by @joseptrigo.bsky.social.
📆27 June at 12 pm ➡️https://www.youtube.com/live/n9UOPLXBNik?si=Ty3GSRbzLVSE4gSn
@ieec.cat @csiccat.bsky.social
Mining the asteroids of Neterun is standard procedure for any raider.
Which is exactly why it’s dangerous and potentially lethal.
#HellGalaxy #AsteroidDay #SpaceMining #IndieGame
Which is exactly why it’s dangerous and potentially lethal.
#HellGalaxy #AsteroidDay #SpaceMining #IndieGame
June 30, 2026 at 5:02 PM
Mining the asteroids of Neterun is standard procedure for any raider.
Which is exactly why it’s dangerous and potentially lethal.
#HellGalaxy #AsteroidDay #SpaceMining #IndieGame
Which is exactly why it’s dangerous and potentially lethal.
#HellGalaxy #AsteroidDay #SpaceMining #IndieGame