Michael Porter · @MichaelPorter
345 followers · 5771 posts · Server ottawa.place

June 30 is Asteroid Day! asteroidday.org/

In honour of the occasion, here is a list of recent & upcoming Earth-asteroid encounters featuring potentially hazardous near-Earth asteroids (NEAs) that we *really* need to keep an eye on. We don’t want to end up like the dinosaurs!

Sorry about the Starlink trails, by the way.

#asteroidday #Astronomy #astrophotography #dinosaurs #extinction

Last updated 1 year ago

AkaSci 🛰️ · @AkaSci
1356 followers · 1474 posts · Server fosstodon.org

Who can forget the NASA DART mission, when the spacecraft rammed into asteroid Didymos's moonlet Dimorphos on Sep 26, 2022, to demonstrate the kinetic impactor technique to change the trajectory of an asteroid.
The impact shortened Dimorphos's orbital period of 11 hour and 55-minute by 33 minutes.

youtube.com/watch?v=vMu5bNadlG
nasa.gov/feature/nasa-s-dart-d

8/n

#asteroidday #dart

Last updated 1 year ago

Science Magazine :press: · @ScienceMagazine
907 followers · 63 posts · Server press.coop

Samples recovered from near-Earth asteroid represent chemically the most primitive and pristine materials yet analyzed in a laboratory, a 2022 Science study suggests. scim.ag/3bX

#ryugu #solarsystem #asteroidday #press

Last updated 1 year ago

Welcome to the Boomtown · @boomtownpodcast
192 followers · 870 posts · Server mstdn.social
Chaslinux · @chaslinux
172 followers · 904 posts · Server techhub.social

Apparently today is so a little shameless plug for this old Asteroids spin I made back in 2020: chaslinux.itch.io/fasteroids

#asteroidday

Last updated 1 year ago

Robert Norlyn :coffefied: · @robertnorlyn
439 followers · 4374 posts · Server mstdn.social

It's Asteroid Day!

It is held on June 30 each year to mark the date of Earth’s largest asteroid impact in recorded history, the Siberia Tunguska event.

Asteroid Day was co-founded by astrophysicist and musician Dr. Brian May of the rock group Queen, Apollo 9 astronaut Rusty Schweickart, filmmaker Grig Richters, and B612 President Danica Remy to educate the public about the importance of asteroids in our history and the role they play in the solar system.

#planetarysociety #asteroidday

Last updated 1 year ago

Knowledge Zone · @kzoneind
222 followers · 1387 posts · Server mstdn.social

: is place in our solar system where small bodies – mostly rocky and some metallic – orbit the sun.

Do you know Asteroid Belt is located between which two planets?

A. Mars and Earth
B. Mars and Jupiter
C. Earth and Jupiter
D. Jupiter and Saturn

knowledgezone.co.in/resources/

#asteroidday #AsteroidBelt #quizoftheday

Last updated 1 year ago

AkaSci 🛰️ · @AkaSci
1356 followers · 1471 posts · Server fosstodon.org

By comparison, 433 Eros, the 2nd-largest near-Earth object, has an ominous shape and a volume-equivalent diameter of a 16.8 km.

Eros is a Mars-crosser asteroid. Dynamical integrations suggest that Eros may evolve into an Earth-crosser within as short an interval as 2 million years, and has a roughly 50% chance of doing so over a time scale of 100-1000 million years.

The largest NEO is 1036 Ganymed at 35 km diameter.

en.wikipedia.org/wiki/433_Eros

7/n

#asteroidday #eros

Last updated 1 year ago

AkaSci 🛰️ · @AkaSci
1356 followers · 1469 posts · Server fosstodon.org

NEO Surveyor is a planned space-based infrared telescope designed to survey potentially hazardous asteroids.
Location: Sun–Earth L1 (inner) Lagrange point
Main instrument: 0.5 m telescope
Detector wavelengths: Mid-infrared 4–5.2 and 6–10 µm
Launch : 2028

solarsystem.nasa.gov/missions/
en.wikipedia.org/wiki/NEO_Surv

5/n

#asteroidday #NEOSurveyor #nasa

Last updated 1 year ago

AkaSci 🛰️ · @AkaSci
1356 followers · 1467 posts · Server fosstodon.org

As of today and according to statistics maintained by CNEOS, 32,268 near-Earth asteroids (NEAs) have been discovered. ranging in size from 1 meter up to 32 km. The number of near-Earth asteroids over 1 km in diameter is estimated to be about 853, of which over 90% have been discovered. 2,304 of the NEAs are classified as potentially hazardous asteroids (PHAs).
cneos.jpl.nasa.gov/stats/total

2/n

#asteroidday

Last updated 1 year ago

Better Know An Asteroid · @asteroids
3 followers · 25 posts · Server astrodon.social
Ele Willoughby, PhD · @minouette
816 followers · 938 posts · Server spore.social

Luckily this is a sparsely populated area of Siberian taiga, but it’s estimated that 80 million trees were flattened.

Fun fact: Asteroid Day was co-founded by astrophysicist/rock musician Dr Brian May of Queen.

#printmaking #sciart #asteroid #space #asteroidday #miniprint #astrophysics

Last updated 1 year ago

Santiago Sainz :verified: · @SantiagoSainz
735 followers · 1000 posts · Server mastodon.cloud

Happy International Asteroid Day! Today, we celebrate the scientific achievements and collective efforts to protect our planet from potential asteroid impacts. By raising awareness, fostering innovation, and strengthening international cooperation, we can advance planetary defense and ensure the safeguard our home, Earth.

#asteroidday #planetaryprotection #scientificadvancement

Last updated 1 year ago

howtospace · @howtospace
29 followers · 36 posts · Server astrodon.social

#asteroidday

Last updated 1 year ago

Antinous the Gay God · @antinousgaygod
143 followers · 1043 posts · Server social.anoxinon.de

🪷 30 June is . We honor dwarf planet , a Near-Earth . It's one of the named for Classical deities. It passed by Earth in 1992, 1999 and will be back later this century. And it could visit us with a bang: antinousstars.blogspot.com/2022/06/antino…https://antinousstars.blogspot.com/2023/06/antinous-asteroid-is-neighbor-who-could.html 🪷

#asteroidday #antinous #asteroid #apollo #asteroids

Last updated 1 year ago

Planetario de Pamplona · @pamplonetario
181 followers · 36 posts · Server astrodon.social

Hoy celebramos el día del Asteroide. Recordando el impacto sobre Tunguska tal día como hoy en 1908 y montando un taller de en el Planetario de Pamplona.
pamplonetario.org/es/destacamo

#cienciaciudadana #asteroidday

Last updated 1 year ago

Knowledge Zone · @kzoneind
222 followers · 1381 posts · Server mstdn.social

Happy Birthday Michael Phelps (1985) - the most successful and most decorated of all time.

Today is International - annual global event which is held on the anniversary of the event that took place on June 30, 1908.

knowledgezone.co.in/news

#tunguska #siberian #asteroidday #olympian #onthisday

Last updated 1 year ago

Haus der Astronomie · @hausderastronomie
950 followers · 587 posts · Server astrodon.social

Der Countdown zum läuft! In Heidelberg machen wir zusammen mit dem Käte Hamburger Kolleg für Apokalyptische und Postapokalyptische Studien (CAPAS) fast eine ganze Woche draus - mit Vorträgen auf Deutsch und Englisch, Meteoriten-Wein-Tasting, Filmvorführung und Kinderprogramm. Seid ihr dabei?

Am Samstag, dem 1. Juli erkunden wir ab 11 Uhr mit Familien mit Kindern ab 6 Jahren die Welt der Asteroiden und Kometen
haus-der-astronomie.de/4134275

#asteroidday

Last updated 1 year ago

CAPAS Heidelberg · @capas
186 followers · 51 posts · Server zirk.us

What an evening last Friday at our Apocalyptic Wine Tasting 🤩 Exciting wines & exciting talks! Thanks to everybody who joined and especially to our speakers Michael, Emily & Richard @zinken If you could not make it: on June 30th we will be having another tasting with meteorite wine ☄️ at the Karlstorkino. Mark your calendars.

#asteroidday

Last updated 1 year ago

Astronomiemuseum · @AstroMuseumSon
138 followers · 74 posts · Server mastodon.social

Zum Thema und gibt es am 30.06.2023, dem Asteroid Day 2023, im eine für , bei der wir vielleicht auch echte Meteorite finden werden?
Am besten gleich anmelden: astronomiemuseum.de/termindeta

#meteor #asteroid #Astronomiemuseum #veranstaltung #kinder #asteroidday

Last updated 2 years ago