Hubble 31st Anniversary Observation of Luminous Blue Supergiant Star

By James Daly, Ph.D NASA Video at foot of article NASA Hubblesite news release here On the occasion of the Hubble Space Telescope’s 31st successful year in orbit last Saturday (4/24, launch date: 4/24/1990), the iconic orbiting telescope was tasked with capturing AG Carinae, a blue supergiant star in the southern constellation of Carina. This[…]

Spring is Galaxy Season!

A quick video showing the placement of the Virgo Cluster of galaxies with the massive elliptical galaxy Messier-87 at its center. Imaged with the Hubble Space Telescope, M-87 is shown here surrounded by thousands of globular star clusters. Our Milky Way galaxy, a member of the Local Cluster of Galaxies is, in turn, a member[…]

The Changing Seasonal Skies

Did you ever wonder why each of the seasons features a unique and distinctive procession of stars and constellations? The year is divided into four seasons, Spring, Summer, Autumn and Winter. We begin the astronomical year on the Vernal Equinox, the astronomical beginning of Spring and the date the sun, moving eastward along the Ecliptic,[…]

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