John Dudley on Twitter: "Breaking from the world of bibliometrics! Everyone's favourite 3 decimal place numbers now out! Impact Factors for a selection of journals below! No real surprises and optics &
![Nature Astronomy on Twitter: "Our September cover narrowly makes it into the final of the #NAstroCoverComp. Heat 4 coming now... https://t.co/Ut2IwfHFPK" / Twitter Nature Astronomy on Twitter: "Our September cover narrowly makes it into the final of the #NAstroCoverComp. Heat 4 coming now... https://t.co/Ut2IwfHFPK" / Twitter](https://pbs.twimg.com/media/ELlXtCUWkAA6tKc.jpg)
Nature Astronomy on Twitter: "Our September cover narrowly makes it into the final of the #NAstroCoverComp. Heat 4 coming now... https://t.co/Ut2IwfHFPK" / Twitter
![Astronomers detect signs of an atmosphere stripped from a planet during giant impact | MIT News | Massachusetts Institute of Technology Astronomers detect signs of an atmosphere stripped from a planet during giant impact | MIT News | Massachusetts Institute of Technology](https://news.mit.edu/sites/default/files/images/202110/MIT-Stripped-Atmos-01-press.jpg)
Astronomers detect signs of an atmosphere stripped from a planet during giant impact | MIT News | Massachusetts Institute of Technology
![Prevalence of non-aromatic carbonaceous molecules in the inner regions of circumstellar envelopes | Nature Astronomy Prevalence of non-aromatic carbonaceous molecules in the inner regions of circumstellar envelopes | Nature Astronomy](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41550-019-0899-4/MediaObjects/41550_2019_899_Fig1_HTML.png)
Prevalence of non-aromatic carbonaceous molecules in the inner regions of circumstellar envelopes | Nature Astronomy
![A rich population of free-floating planets in the Upper Scorpius young stellar association | Nature Astronomy A rich population of free-floating planets in the Upper Scorpius young stellar association | Nature Astronomy](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41550-021-01513-x/MediaObjects/41550_2021_1513_Fig1_HTML.png)
A rich population of free-floating planets in the Upper Scorpius young stellar association | Nature Astronomy
![Nature Astronomy on Twitter: "Our September cover narrowly makes it into the final of the #NAstroCoverComp. Heat 4 coming now... https://t.co/Ut2IwfHFPK" / Twitter Nature Astronomy on Twitter: "Our September cover narrowly makes it into the final of the #NAstroCoverComp. Heat 4 coming now... https://t.co/Ut2IwfHFPK" / Twitter](https://pbs.twimg.com/media/ELbcSuYXsAAFNhi.jpg)