🪨 Static Electricity Is Critical to the Formation of Planets • Nautilus

「 "The dust particles need static electricity to make them “sticky” enough to cluster into pebbles that can form planets.

Only when particles grow larger than this threshold size—roughly a quarter of an inch, depending on conditions—can they eventually join to form rocky “planetesimals,” from about half a mile to 100 miles across 」

https://nautil.us/how-pebbles-form-planets-1201205/

#space #planetesimals #exoplanets

🪐 Protoplanetary Disks Are Smaller Than Expected • Centauri Dreams

“The discovery that the majority of the small discs do not show gaps, implies that the majority of stars do not host giant planets. This is consistent with what we see in exoplanet populations around full-grown stars. These observations link the disc population directly to the exoplanet population.”

https://www.centauri-dreams.org/2025/04/04/protoplanetary-disks-are-smaller-than-expected/

#exoplanets #planetesimals #space

🔭 Webb Just Captured the First Direct Image of Carbon Dioxide on an Exoplanet

「 The achievement was made possible by Webb’s coronagraphs, which block light from bright stars as happens in a solar eclipse to reveal otherwise hidden worlds. This allowed the team to look for infrared light in wavelengths that reveal specific gases and other atmospheric details 」

https://scitechdaily.com/webb-just-captured-the-first-direct-image-of-carbon-dioxide-on-an-exoplanet/

#exoplanets #astronomy #space #jwst