Eos cloud
| Nebula | |
|---|---|
.png) Artist's illustration of the Local Bubble where the Eos cloud is located. The Sun is in the center. | |
| Observation data | |
| Distance | 94 pc |
| Notable features | Located near the edge of the Local Bubble |
The Eos Cloud is a dark molecular cloud of Hydrogen gas located just 94 parsecs from the Sun near the edge of the Local Bubble. The cloud has a small amount of carbon monoxide contained within it.[1] It is predicted that in 5.7 million years, the Eos cloud will photoevaporate.[2][3]
The cloud was discovered in 2025 by using H2 far ultraviolet fluorescent line emission. Its close proximity (one of the closest clouds to Earth) to Earth allows for easier observation of how these molecular clouds form and dissipate.[1]
The cloud is named after Eos, the Greek goddess of the dawn.[4]
References
[edit]- ^ a b "A vast molecular cloud, long invisible, is discovered near our solar system". phys.org. Retrieved 2025-04-29.
- ^ Burkhart, Blakesley; Dharmawardena, Thavisha E.; Bialy, Shmuel; Haworth, Thomas J.; Cruz Aguirre, Fernando; Jo, Young-Soo; Andersson, B.-G.; Chung, Haeun; Edelstein, Jerry; Grenier, Isabelle; Hamden, Erika T.; Han, Wonyong; Hoadley, Keri; Lee, Min-Young; Min, Kyoung-Wook (2025-04-28). "A nearby dark molecular cloud in the Local Bubble revealed via H2 fluorescence". Nature Astronomy: 1–9. doi:10.1038/s41550-025-02541-7. ISSN 2397-3366.
- ^ Staff, News (2025-04-28). "Astronomers Detect Huge Molecular Hydrogen Cloud near Our Solar System | Sci.News". Sci.News: Breaking Science News. Retrieved 2025-04-29.
{{cite web}}:|first=has generic name (help) - ^ https://www.livescience.com/space/astronomy/its-huge-and-its-been-hidden-for-this-whole-time-gigantic-glow-in-the-dark-cloud-near-earth-surprises-astronomers