Comets, Meteors, and Asteroids


A Radio Search for Artificial Emissions from 'Oumuamua

MOUNTAIN VIEW – It’s the first time a visitor from another star system has been seen nearby. But what is it? An asteroid, a comet … or an alien artifact?

Earth Impacting Debris from Comets and Asteroids

, 11:00 AM - 12:00 PM
This talk will be presented by the UCLA department of Earth, Planetary and Space Sciences. SETI Institute Senior Research Scientist Peter Jenniskens will present.
Perseids August 12, 2017

Look for other meteors during the Perseids

This weekend's Perseids promise to be exceptional because the Moon will not dim the display. For observers in the United States, the most interesting time to watch, perhaps, is on Sunday evening, August 12, when the meteoroids enter the atmosphere at a shallow angle, creating long streaks.

Planetary Defense Has New Tool in Weather Satellite Lightning Detector

NASA's efforts to better understand asteroid impacts has found unexpected support from a new satellite sensor designed to detect lightning.
Search team pointing to the first meteorite found

Fragment of Impacting Asteroid Recovered In Botswana

(Mountain View, CA, July 6, 2018) A meteorite was found in Botswana’s Central Kalahari Game Reserve (CKGR) that is a fragment of asteroid 2018 LA. This small asteroid was discovered in space by the University of Arizona's Catalina Sky Survey on June 2, 2018, eight hours before hitting Earth.

Is this mysterious space rock actually an alien spaceship?

It’s in the news because people want to know if it’s a rock or a rocket. The “it” in question is a weirdly oblong asteroid that goes by the barely pronounceable moniker 'Oumuamua.
Asteroid Oumuamua

The Three Surprises of 'Oumuamua

One of the defining moments in planetary astronomy in 2017 is that this is the year we discovered the first astronomical object to enter the Solar System from interstellar space.

Geminids Meteor shower Dec. 12 -15, 2017

People interested in seeing this year's Geminids meteor shower may want to come to California. The weather forecast is good and the Moon is out of the picture.

1I/‘Oumuamua, The First known Interstellar Visitor

, 7:00 PM - 8:30 PM
Join us on January 23 at 7pm for a special SETI Talk on 1I/`Oumuamua, the first known interstellar small body, possibly an asteroid which is probably coming from another planetary system.