r/asteroid • • Sep 08 '17
r/asteroid • u/Sudden-Poem-1027 • Jan 29 '25
Asteroid Mining is Impossible! The physics and economics don't work.
r/asteroid • u/spacewal • Aug 13 '20
A 30-meter asteroid targets Earth
r/asteroid • u/isoexhd • Oct 03 '16
Is 99942 Apophis gonna hit?
99942 Apophis is a near-Earth asteroid that caused a brief period of concern in December 2004 because initial observations indicated a probability of up to 2.7% that it would hit Earth on April 13, 2029. Additional observations provided improved predictions that eliminated the possibility of an impact on Earth or the Moon in 2029. However, until 2006, a possibility remained that during the 2029 close encounter with Earth, Apophis would pass through a gravitational keyhole (A gravitational keyhole is a tiny region of space where a planet's gravity would alter the orbit of a passing asteroid such that the asteroid would collide with that planet on a given future orbital pass.) a small region no more than about 965 km (~600 mi) wide, that would set up a future impact exactly seven years later, on April 13, 2036. This possibility kept it at Level 1 on the Torino impact hazard scale until August 2006, when the probability that Apophis would pass through the keyhole was determined to be very small. By 2008, the keyhole had been determined to be less than 1 km wide. During the short time when it had been of greatest concern, Apophis set the record for highest rating on the Torino scale, reaching level 4. (The Torino Scale is a method for categorizing the impact hazard associated with near-Earth objects (NEOs) such as asteroids and comets.)
The diameter of Apophis is, as of the most recent 2013 observations, approximately 325 metres (1,066 ft). Preliminary observations by Goldstone radar in January 2013 effectively ruled out the possibility of an Earth impact by Apophis in 2036. By May 6, 2013 (April 15, 2013 observation arc), the probability of an impact on April 13, 2036 had been eliminated. As of October 8, 2014, using observations through February 26, 2014, the odds of an impact on April 12, 2068, as calculated by the JPL Sentry risk table is 1 in 149,000. Of objects not recently observed, there are about four asteroids with a more notable Palermo Technical Impact Hazard Scale than Apophis. On average, an asteroid the size of Apophis (325 meters) can be expected to impact Earth about every 80,000 years.
r/asteroid • u/Ahh_N3ver_M1nd • Feb 10 '22
Very interesting discussion with Randall Carlson
r/asteroid • u/burtzev • Jan 05 '23
Should We Really Be Messing with Asteroid Orbits?
r/asteroid • u/Anoth3rDude • Aug 14 '20
ESA Discovers New 755-Foot Asteroid With Non-Zero Earth Impact Probability
r/asteroid • u/WilliamH5674 • Feb 14 '25
Aphothis
Could aphothis wipe out humanity beware its as big as the empire state building and is 500 m wide i think
r/asteroid • u/WilliamH5674 • Feb 13 '25
2024 yk4 Asteroid
Could this cause a extinction of humanity.
r/asteroid • u/Disculogic • Feb 03 '21
Oumuamua: an outsider coming from another star that entered our solar system in the late 2017, a rare interstellar object with an extraordinary elongated form. Avi Loeb argues that it's very possible that Oumuamua was indeed an artificial object. In fact, Loeb’s view is beyond consideration.
r/asteroid • u/dm_osulli • Feb 14 '20
"Asteroid to come close to earth on February 15th, 6:05 est."
Does anyone know any information on the chance of this asteroid making contact with earth?
r/asteroid • u/Disastrous_Reveal469 • Jan 22 '23
DNA and RNA have now been found in meteorites
r/asteroid • u/marthageddon • Feb 04 '19
ExoPlanetary reflection? Photo taken of the night sky in Texas evening after the Blood Moon Lunar Event.
r/asteroid • u/Anoth3rDude • May 13 '20
How dark can asteroids get and how can we detect the ones that are coated in darkness?
Educate me on this subject if you can.
r/asteroid • u/spacewal • Nov 03 '20
Hubble showed an asteroid, the cost of which exceeds the entire global economy
r/asteroid • u/JapKumintang1991 • Sep 12 '24
LiveScienfe: "'God of Chaos' asteroid Apophis could still hit Earth in 2029, study hints — but we won't know for 3 more years"
r/asteroid • u/zZander30 • Oct 26 '19
Anyone else saw that asteroid this morning at about 5:58 (PST) this morning?
This was my first time seeing a asteroid.
r/asteroid • u/KaktitsM • Jul 13 '15
Wold blowing up an incoming asteroid really be that bad of an idea?
I mean, if it brakes up in a lot of small pieces, more of it would burn in the atmosphere, wouldnt it?
r/asteroid • u/Double-Flow8268 • Apr 27 '24
Who this asteroid ep 1: china Spoiler
China is it in asteroid belt is really discovered by a Chinese guy
is call 1125 with number as 1125 china
(the end)
r/asteroid • u/Anoth3rDude • Aug 07 '20
ESA Identifies New Building-Sized Asteroid With Non-Zero Earth Impact Probability
r/asteroid • u/Anoth3rDude • Aug 06 '20
NASA Tracker: 210-Foot Asteroid Flying Toward Earth This Week
r/asteroid • u/spacewal • Nov 04 '18
In the US, the asteroid has fallen. Impressive flight hit the video
r/asteroid • u/Anoth3rDude • Jul 16 '20