地球上最大的火星陨石将在纽约拍卖
仅事实

地球上最大的火星陨石将在纽约拍卖

摘要

苏富比将在纽约举办的自然历史拍卖会上拍卖迄今为止地球上发现的最大火星陨石,以及一具幼年角鼻龙骨架。

一块重达54磅的火星陨石,被认为是迄今为止在地球上发现的最大火星碎片,将于7月16日在纽约由苏富比拍卖。这块标号为NWA 16788的标本于2023年11月在尼日尔被发现,估价在200万至400万美元之间。苏富比表示,该陨石是由小行星撞击从火星抛射出来,经过约1.4亿英里的旅程后降落在撒哈拉沙漠。

苏富比科学与自然历史副主席卡桑德拉·哈顿称这一发现为“我们迄今为止发现的最大一块火星陨石,远远超过之前最大的已知火星陨石”,并指出其体积是之前最大陨石的两倍多。该岩石尺寸约为15英寸×11英寸×6英寸,占地球上所有火星物质的近7%。据苏富比报道,在超过77,000块官方认可的陨石中,只有约400块被确认来自火星。

科学分析通过将其化学成分与1976年维京号太空探测器采集的样本进行比对,确认了该陨石的火星起源。该岩石被归类为橄榄石微辉长岩型舍戈蒂陨石,这是一种由缓慢冷却的岩浆形成的火星岩石,表面呈玻璃质感,源于其穿越地球大气层时的高温燃烧。该陨石曾在罗马意大利航天局展出,其确切抵达地球的时间尚不确定,但测试显示其在近年降落。

此次拍卖还将展出一具幼年角鼻龙(Ceratosaurus nasicornis)骨架,该骨架于1996年在怀俄明州发现,估价在400万至600万美元之间。该骨架距今约1.5亿年,属于晚侏罗世时期,由近140块化石骨骼和额外雕塑材料组装而成。苏富比2025年极客周拍卖共包含122件拍品,涵盖陨石、化石及宝石级矿物等。

来源

KSL News

事实核查

使用外部来源和数据库核实文章的事实。

✓
Confirmed

A 54-pound Martian meteorite, believed to be the largest piece of Mars ever discovered on Earth, is set to be auctioned by Sotheby's in New York on July 16.

✓
Confirmed

The specimen, designated NWA 16788, was found in Niger in November 2023 and is estimated to fetch between $2 million and $4 million.

✓
Confirmed

According to Sotheby's, the meteorite was ejected from Mars by an asteroid impact and traveled approximately 140 million miles before landing in the Sahara.

✓
Confirmed

Cassandra Hatton, vice chairman for science and natural history at Sotheby's, described the find as 'the largest piece of Mars we have ever found by a long shot,' noting it is more than double the size of the previously largest known Martian meteorite.

✓
Confirmed

The rock measures nearly 15 inches by 11 inches by 6 inches and accounts for nearly 7% of all Martian material on Earth.

✓
Confirmed

Out of more than 77,000 officially recognized meteorites, only about 400 are confirmed to be from Mars, Sotheby's reports.

✓
Confirmed

Scientific analysis confirmed the meteorite's Martian origin by comparing its chemical composition with samples collected by the Viking space probe in 1976.

✓
Confirmed

The rock is classified as an olivine-microgabbroic shergottite, a type of Martian rock formed from slowly cooled magma, and features a glassy surface attributed to its fiery descent through Earth's atmosphere.

继续阅读——免费

创建免费账户以关注新闻。无需银行卡。