After a launch last year went awry, parts of a Falcon 9 rocket have been hurtling towards the moon. The crash was expected to happen on Wednesday - and now the European Southern Observatory has measured sodium and lithium gas from the estimated impact site.
"The sodium probably originates from the lunar soil, while the lithium comes from the rocket itself," the observatory writes on social media.
The Los Alamos National Laboratory in the United States has also confirmed the impact, according to AFP.
The rocket is estimated to have travelled at a speed of almost 9,000 kilometres per hour.
Elon Musk is the CEO of the space company SpaceX.
