Astronomers have obtained spectacular images of an interstellar jet launched from a newly forming star. Careful comparison with archival data offers a fresh take on the chemistry of the environment that surrounds it.

In organisms with X and Y chromosomes, gene expression must be equalized between the sexes. A protein that causes upregulation of gene expression of the X chromosome in male mosquitoes has been discovered.

An organic light-emitting diode has been integrated with an optically driven organic laser to produce laser light from electricity. The design bypasses many of the challenges posed by direct electrical input in such devices.

Are protected areas slowing down global biodiversity declines? A global analysis provides evidence that they are, although effects vary across groups of species, and what happens outside protected areas matters, too.