时间:2025-11-22 03:30:04 来源:网络整理编辑:熱點
The NASA/ESA Hubble Space Telescope grabbed a beautiful, haunting image of a gaseous "stellar nurser
The NASA/ESA Hubble Space Telescope grabbed a beautiful, haunting image of a gaseous "stellar nursery" that the space agencies published Friday.
In this image we can see what's known as Free-floating Evaporating Gaseous Globule (frEGGs), dark and compact globules of dust and gas, surrounded by a bubble of hot, ionized gas wherein new stars can be formed. The purple-ish, blue-ish border around the dusty frEGGs is the boundary between the the cooler globules and the hotter gas bubble, according to the ESA.
A larger, more complete image of the frEGGs shows how far they stretch.Credit: ESA/Hubble & NASA, R. SahaiNear the dust, a massive new star has begun the shine, formed by spinning, coalescing gas clouds that build up mass and progressively grow hotter. This star's heat radiates outward into the surrounding gas, causing hydrogen atoms to shed electrons and form a superhot outer shell of ionic atoms and free electrons that continuously collide with each other.
Some of the frEGGS inside of this nebula are in the process of forming their own stars, which is where the term "nursery" comes in.

A Hubble image published in July depicts different collection of frEGGs similarly found around a massive star. This was the first time that a nebula was given the class distinction of frEGG.
What brands need to know about virtual reality2025-11-22 03:12
Walmart+ Weekend: Walmart's answer to Prime Day starts June 22025-11-22 03:08
Walmart+ Weekend: Walmart's answer to Prime Day starts June 22025-11-22 03:06
Walmart+ Weekend: Walmart's answer to Prime Day starts June 22025-11-22 03:05
We asked linguists if Donald Trump speaks like that on purpose2025-11-22 02:54
Walmart+ Weekend: Walmart's answer to Prime Day starts June 22025-11-22 02:53
Walmart+ Weekend: Walmart's answer to Prime Day starts June 22025-11-22 02:49
Walmart+ Weekend: Walmart's answer to Prime Day starts June 22025-11-22 02:03
This company is hiring someone just to drink all day2025-11-22 01:31
Walmart+ Weekend: Walmart's answer to Prime Day starts June 22025-11-22 00:43
Slack goes down again, prompting anxiety everywhere2025-11-22 03:18
Walmart+ Weekend: Walmart's answer to Prime Day starts June 22025-11-22 03:09
Walmart+ Weekend: Walmart's answer to Prime Day starts June 22025-11-22 02:39
Walmart+ Weekend: Walmart's answer to Prime Day starts June 22025-11-22 02:02
You can now play 'Solitaire' and 'Tic2025-11-22 02:02
Walmart+ Weekend: Walmart's answer to Prime Day starts June 22025-11-22 01:42
Walmart+ Weekend: Walmart's answer to Prime Day starts June 22025-11-22 01:39
Walmart+ Weekend: Walmart's answer to Prime Day starts June 22025-11-22 00:59
Fiji wins first2025-11-22 00:52
Walmart+ Weekend: Walmart's answer to Prime Day starts June 22025-11-22 00:44