Hubble Space Telescope Archives -
Using NASA’ Hubble Telescope, astronomers have observed the Arches Cluster, the most dense cluster known in the Milky Way with a mass equivalent to more than 10,000 Sun-like stars in a space with a radius equal to the distance between the sun and its nearest neighbor Alpha Centauri star system.
What is hiding in the large disk of gas and dust encircling the 20 million-year-old star Beta Pictoris? In 1984 Beta Pictoris was the very first star discovered to be surrounded by a bright disk of dust and debris. Since then, Beta Pictoris has been an object of intense scrutiny with Hubble and ground-based telescopes.
A new space telescope concept, named the Aragoscope after French scientist Francois Arago who first detected diffracted light waves around a disk, could allow scientists to image space objects like black hole “event horizons” and plasma swaps between stars, said Cash of CU-Boulder’s Center for Astrophysics and Space Astronomy.
Jupiter’s Great Red Spot seems to be on a cosmic diet, shrinking rapidly before our eyes. Jupiter’s Great Red Spot might be, quite literally, the perfect storm: It’s a swirling, anti-cyclonic vortex that’s big enough to engulf three Earths and has been raging in the atmosphere of the solar system’s largest planet for at least 400 years.