telescope

Saturn in opposition

Today the planet Saturn reaches opposition. It means that in our skies the Sun and Saturn oppose each other, 180 degrees apart. Many websites will tell you that its visibility will be great, its distance…


A picture of home, very, very far away

For the first time, astronomers have used the same imaging technology found in a digital camera to take a picture of a planet far from our solar system with an Earth-based telescope. The accomplishment is…


SALT and its prospects

On 30 August, the Cape of Good Hope lived up to its original name, the Cape of Storms. The cargo ship Atacama barely managed to find shelter in her berth at Cape Town before the…


A wide view on the universe

A stunning image of M31 captured by Subaru Telescope’s Hyper Suprime-Cam (HSC) displays the fruits of international collaboration and technological sophistication aligned with cutting-edge science. In addition to providing information about a nearby galaxy that…


On course in the future for a peek in the past

Big programs attract attention, and controversy, particularly when they run behind schedule and/or over budget. That’s been true for a number of NASA programs over the years, from the International Space Station to elements of…


Now that’s what I call excellent recycling

Astronomers are excited by the possibility of using one of two cast-off spy satellite telescopes gifted to NASA to probe for dark energy. They have already come up with a design that would incorporate the…


Extreme deep, far, old

Like photographers assembling a portfolio of best shots, astronomers have assembled a new, improved portrait of mankind’s deepest-ever view of the universe. Called the eXtreme Deep Field, or XDF, the photo was assembled by combining…