8legs: Hubble space telescope

Your Followed Topics

#1 out of 357.14%

8h ago

Hubble’s new gallery shows four protoplanetary disks in visible light, with jets and shadowed disks illuminating planet-forming regions.
Infrared images reveal embedded protostars surrounded by dusty disks, showcasing how dust absorbs and re-emits starlight.
The disks form around young stars as material with angular momentum rotates, gradually accreting onto the star over hundreds of thousands of years.
Jets and Herbig-Haro objects indicate energetic outflows from forming stars, shaping their surroundings.
JWST observations later showed layered wind structures and inner and outer jets around young protostars.
Hubble has lasted over 35 years, outlasting its original 15-year expectation due to servicing missions.
NASA anticipates Hubble will continue operating into the 2030s as it ages gracefully.
The Birth of Stars and Planetary Systems theme continued with JWST’s complementary insights.
The article links how early disk stages relate to later planet formation in broader star-forming regions.
Hubble’s 35-year legacy continues to inform understanding of disk dynamics and planet formation.

Vote 0

#2 out of 3

18h ago

The most common gravitational-lensing outcome is a quadruply imaged background source, producing an Einstein cross rather than a ring.
Rings require near-perfect symmetry and alignment; real lenses are not spherical and backgrounds rarely align exactly along the line of sight.
Einstein rings do exist but are rare; the study emphasizes crosses are more common due to lens and source geometry.
Huchra’s lens (G2237+0305) illustrates a four-image Einstein cross formed by a foreground galaxy lensing a background quasar.
Gaia and JWST surveys have expanded the catalog of Einstein crosses, aiding dark matter studies.
The nature of lens mass distribution—ellipticity, substructure, and multiple components—drives cross-shaped appearances.
Crosses often arise when alignment is imperfect and the lens has aspherical substructure, not a perfect sphere.
Partial rings and arcs occur when the lens is near-symmetric or the alignment is nearly perfect but not exact.
Astrophysicists use cross configurations as probes of dark matter substructure within lensing galaxies.
Cosmic lensing discoveries by Hubble and JWST are expanding understanding of the universe and cosmic history.

Vote 0

#3 out of 3

A protostar in NGC 1333 is actively accreting material while it jets outward, illustrating star formation in action.
The image spotlights NGC 1333 in the Perseus molecular cloud, about 950 light-years from Earth.
Hubble's view helps scientists understand how star growth is episodic rather than smooth.
The discovery emphasizes how a protostar and a surrounding protoplanetary disk interact during early star formation.
The nebular environment shows how dust and gas reveal the early stages of star birth.
The feature notes that gravity drives inward collapse while jets push outward, shaping the forming system.
The article connects star formation studies to broader insights about how planets may form around young stars.
The piece attributes the image to NASA, ESA, and collaborators, highlighting the teamwork behind space imagery.
The article presents the image as part of Space.com’s space photo of the day feature.
The report underscores the ongoing importance of high-resolution observations for understanding protostellar evolution.

Vote 0

Unlimited Access

Personalized Feed

Full Experience

By continuing, you agree to the Privacy Policy.. You also agree to receive our newsletters, you can opt-out any time.

Create an account and enjoy content that interests you with your personalized feed

Unlimited Access

Personalized Feed

Full Experience

By continuing, you agree to the Privacy Policy.. You also agree to receive our newsletters, you can opt-out any time.