How Do You Find Fish That Died on the Day of the Impact?

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The fish were found with impact ferrels in their gills. The meteorites struck with such force earth rock was flung out into s it crystallized in low gravity conditions and then rained back down to earth. And we can recognize them very well because they are often hollow in the centre, or they have a glassy core. Everything that crystallizes on earth has their lightest elements come to the top. If something crystallizes in space, it stays in the centre. So youve got these rocks that been thrown up by the mete have got up into space, they've crystallized, and then they've come back down and impacted these poor fish.

00:47 Pinpointing the season when an asteroid wiped out the dinosaurs

Around 66 million years ago, an enormous asteroid struck the Earth, leading to the end of the time of the dinosaurs. In a new paper, a team of scientists looked at evidence from fossilised fish, and suggest it happened in springtime in the Northern Hemisphere.

Research article: During et al.

08:42 Research Highlights

Transparency shrinks the gender pay-gap in academia, and how Tutankhamen’s meteorite-metal dagger was forged.

Research Highlight: Gender pay gap closes after salary information goes public

Research Highlight: How a space rock became King Tut’s dagger

11:01 How climate change is affecting nighttime wildfires

Cool, damp nights are a critical barrier to fire progression around the world. But a recent study has revealed that the duration and intensity of nighttime fires has increased in many places, as a result of climate change. The researchers say this trend is likely to continue, hampering efforts to control blazes.

Research article: Balch et al.

18:56 Briefing Chat

We discuss some highlights from the Nature Briefing. This time, how transgenic, fluorescent fish found their way into Brazil’s watercourses, and the ecological impact of a giant oil spill in Peru.

Science: Transgenic glowing fish invades Brazilian streams

Nature News: Unprecedented oil spill catches researchers in Peru off guard

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