Where Does Cosmic Dust Come From? The JWST Provides an Answer

Where Does Cosmic Dust Come From? The JWST Provides an Answer

Cosmic dust does far more than float through space. It's the raw material from which stars, planets and possibly even life emerge. Yet astronomers have long puzzled over where this vast amount of dust comes from and what it's made of.

JWST COMPASS: A NIRSpec G395H Transmission Spectrum Of The Super-Earth GJ 357 b - Astrobiology

We present JWST NIRSpec/G395H transmission spectroscopy observations of GJ 357 b, a warm (Teq≈525 K) super-Earth (1.2 R⊕, 1.84 M⊕) orbiting a nearby M3-type star, with a median precision of 18 ppm and 27 ppm in NRS1 and NRS2, respectively. These precisions are obtained by binning the spectrum into 53 spectroscopic channels with a resolution […] The post JWST COMPASS: A NIRSpec G395H Transmission Spectrum Of The Super-Earth GJ 357 b appeared firs…