Artist impression of the debris disk around HD This adolescent star system shows signs that in its outer reaches, swarms of Pluto-size objects are jostling nearby smaller objects, causing them to collide and “kick up” considerable dust.
The football-shaped elliptical galaxy near the center of this image hosted a surprising supernova last year. the yellow dot at image center, is classified as a very rare Type Ibn supernova - only the sixth such example found out.
New theory advanced for how collapsed stars become polluted — pointing to ominous fate that awaits planet Earth A decades old space mystery has been solved by an international team of astronomers led by Professor Martin Barstow of the University of.
How The Faintest Galaxies Illuminated The Early Universe Astronomers investigating behaviour of the universe shortly after the Big Bang have made a surprising discovery: the properties of the early universe are determined by the smallest galaxies.
ALMA image of the dust surrounding the star HD 107146. Dust in the outer reaches of the disk is thicker than in the inner regions, suggesting that a swarm of Pluto-size planetesimals is causing smaller objects to smash together. The dark ring-like structure in the middle portion of the disk may be evidence of a gap where a planet is sweeping its orbit clear of dust
By observing a high-speed component of a massive galaxy cluster, Caltech/JPL scientists and collaborators have detected for the first time in an individual object the kinetic Sunyaev-Zel’dovich effect, a change in the cosmic microwave background.