Samuel Courville; School of Earth and Space Exploration, Arizona State University

Of Magnets and Meteorites: What Magnetized Meteorites Tell Us About the Formation of Asteroids and the Solar System

Location: https://ucla.zoom.us/meeting/register/tJEqduyupj0vGd3S0_52FsbHTbPjYr0sZQUj
Time: 2:30PM

Like the magnets on your refrigerator, some meteorites are magnetic. These meteorites are known to have been magnetized in strong magnetic fields before they crashed down onto Earth’s surface. It is important to understand how meteorites become magnetized and what magnetized meteorites tell us about the history of the solar system. Iron meteorites and chondrites that have been magnetized likely acquired their magnetization on their parent asteroids. There are at least three ways that an asteroid could acquire magnetization, and each implies a different formation history for the asteroid: (1) An asteroid could generate its own internal magnetic field and magnetize itself. (2) An external magnetic field could magnetize an asteroid. (3) An asteroid could become magnetized by the accretion of previously magnetized grains. Each mechanism requires different asteroid formation times and different degrees of thermal evolution. Despite the presence of magnetic meteorites, no asteroids have been robustly confirmed to be magnetic.




Dr. Emilie Dunham; UCLA

Meteorites on Ice: Collecting and Studying Antarctic Meteorites

Location: https://ucla.zoom.us/meeting/register/tJEqduyupj0vGd3S0_52FsbHTbPjYr0sZQUj
Time: 2:30PM

Although meteorites are found all over the world, Antarctica is a prime searching location. Over the past 40 years, nearly 25,000 meteorites have been collected across this cold desert. I was a member of the 2019-2020 ANtarctic Search for METeorites (ANSMET) team and helped to collect 346 meteorites. I learned about the history of meteorite hunting in Antarctica, how to find meteorites, and how to survive a month living in a tent hundreds of miles from the nearest people. ANSMET has contributed significantly to meteorite collections. Amazing discoveries have been made about the formation and evolution of the Solar System formation through the study of Antarctic meteorites. Join me on a virtual journey to Antarctica! Image Credit: Antarctic Search for Meteorites Program, Case Western Reserve University




UCLA Meteorite Gallery Poetry Contest

Celebrate National Poetry Day in space!

Location: Virtual Contest
Time: 12PM

In celebration of National Poetry month, we invite all enthusiasts to submit up to 3 poems about meteorites, asteroids, or impacts. We welcome all poetic forms such as haikus, sonnets, limericks, free verses, etc. After careful review of all submissions, we will publish the top 10 poems here on our website and the top 3 poems will be posted in the UCLA Meteorite Gallery. Please submit all poems to Juliet Hook at jahook@ucla.edu by May 15th, 2021.

We kick off this contest with an introductory poem by our curator Dr. Alan Rubin.

Waltzing 253 Mathilde

Dr. Alan Rubin

Crushed and cratered, shattered, pelted,
Shocked and fractured, sintered, melted,
Blackened, jumbled, porous, blocky,
Rent, fragmented, vuggy, rocky,
Slowly spinning in the void;
It's a battered asteroid!

A Star in a Stoneboat

Robert Frost

Never tell me that not one star of all
That slip from heaven at night and softly fall
Has been picked up with stones to build a wall.

Some laborer found one faded and stone-cold,
And saving that its weight suggested gold
And tugged it from his first too certain hold,

He noticed nothing in it to remark.
He was not used to handling stars thrown dark
And lifeless from an interrupted arc.

He did not recognize in that smooth coal
The one thing palpable besides the soul
To penetrate the air in which we roll.

He did not see how like a flying thing
It brooded ant eggs, and bad one large wing,
One not so large for flying in a ring,

And a long Bird of Paradise's tail
(Though these when not in use to fly and trail
It drew back in its body like a snail);

Nor know that be might move it from the spot—
The harm was done: from having been star-shot
The very nature of the soil was hot

And burning to yield flowers instead of grain,
Flowers fanned and not put out by all the rain
Poured on them by his prayers prayed in vain.

He moved it roughly with an iron bar,
He loaded an old stoneboat with the star
And not, as you might think, a flying car,

Such as even poets would admit perforce
More practical than Pegasus the horse
If it could put a star back in its course.

He dragged it through the plowed ground at a pace
But faintly reminiscent of the race
Of jostling rock in interstellar space.

It went for building stone, and I, as though
Commanded in a dream, forever go
To right the wrong that this should have been so.

Yet ask where else it could have gone as well,
I do not know—I cannot stop to tell:
He might have left it lying where it fell.

From following walls I never lift my eye,
Except at night to places in the sky
Where showers of charted meteors let fly.

Some may know what they seek in school and church,
And why they seek it there; for what I search
I must go measuring stone walls, perch on perch;

Sure that though not a star of death and birth,
So not to be compared, perhaps, in worth
To such resorts of life as Mars and Earth—

Though not, I say, a star of death and sin,
It yet has poles, and only needs a spin
To show its worldly nature and begin

To chafe and shuffle in my calloused palm
And run off in strange tangents with my arm,
As fish do with the line in first alarm.

Such as it is, it promises the prize
Of the one world complete in any size
That I am like to compass, fool or wise.

The Meteorite

Clive Staples Lewis

Among the hills a meteorite
Lies huge; and moss has overgrown,
And wind and rain with touches light
Made soft, the contours of the stone.

Thus easily can Earth digest
A cinder of sidereal fire,
And make her translunary guest
The native of an English shire.

Nor is it strange these wanderers
Find in her lap their fitting place,
For every particle that's hers
Came at the first from outer space.

All that is Earth has once been sky;
Down from the sun of old she came,
Or from some star that travelled by
Too close to his entangling flame.

Hence, if belated drops yet fall
From heaven, on these her plastic power
Still works as once it worked on all
The glad rush of the golden shower.




Dr. Guy Consolmagno, S.J.; Vatican Observatory

Vesta and the Chaotic Formation of Planets

Location: https://ucla.zoom.us/meeting/register/tJEqduyupj0vGd3S0_52FsbHTbPjYr0sZQUj
Time: 2:30PM

The Dawn mission was sent to Vesta to inspect, close up, an intact protoplanet from the origin of the solar system. After all, its spectra matches that of basaltic meteorites, which must have come from an early, chemically evolved protoplanet. Except... Vesta's overall density is too low, and its core and crust too big, to fit anything like what we expect an intact protoplanet to look like. Was Vesta ripped apart and re-assembled? Is Vesta giving us new clues to planet formation and evolution in a violent early solar system?




Dr. Rhiannon Mayne; TCU

Charmed, I'm sure: Meteorites as Objects of Cultural Importance

Location: https://ucla.zoom.us/meeting/register/tJEqduyupj0vGd3S0_52FsbHTbPjYr0sZQUj
Time: 2:30PM

Meteorites are objects usually prized primarily for their scientific value; for example, they help answer questions about the formation of our Solar System. However, there is also a long history of meteorites also being objects of significant cultural importance. Qarabawi’s Camel Charm is a sample acquired by the National Meteorite Collection at the Smithsonian’s National Museum of Natural History in 1974. The Charm consists of a flattened disk about 6.5 cm in diameter and four links, all of which are made from meteoritic material. In this presentation, I will discuss the combined scientific and ethnographic study of the Camel Charm, and the Wadi El Gamal meteorite from which it was made.