Making house calls to Hubble
Servicing Mission 1 STS-61 Endeavour • December 2-13, 1993 Servicing Mission 1, launched in December 1993, was the first opportunity to conduct planned maintenance on the telescope. In addition, new instruments were installed and the optics of the flaw in Hubble’s primary mirror was corrected. After Hubble’s deployment in 1990, scientist realized that the telescope’s …
STS-125 Mission: Last visit to Hubble
For a mission that was almost never to be, STS-125 will be remembered in years to come as a resounding success story, one of NASA’s great missions and a tribute to the ingenuity of engineers and astronauts alike. Rejuvenating the world’s most famous telescope and setting it free to make more scientific discoveries the mission …
An explosive quartet: Supernova ‘multiplied’ by galaxy
Whilst looking closely at a massive elliptical galaxy and its associated galaxy cluster MACS J1149+2223 — whose light took over 5 billion years to reach us — astronomers have spotted a strange and rare sight. The huge mass of the galaxy and the cluster is bending the light from a much more distant supernova behind …
The Pi Day of the Century
If you like numbers, you will love March 14, 2015. When written as a numerical date, it’s 3/14/15, corresponding to the first five digits of pi (3.1415) — a once-in-a-century coincidence! Pi Day, which would have been the 136th birthday of Albert Einstein, is a great excuse to eat pie, and to appreciate how important …
Philae bounces into history books
The European Space Agency (ESA) led Rosetta mission, made history this past year, and, captured the attention of people around the world as it became the first to orbit and land on a comet. The spacecraft achieved its goal after deploying a washing machine-sized lander onto the surface of Comet 67P/Churyumov-Gerasimenko on Nov. 12. The …
Astronomical serendipity
Since 1594, when Johannes Kepler predicted that there should be a planet between Mars and Jupiter, astronomers had been searching for that “missing planet.” When Giuseppe Piazzi discovered Ceres in 1801, the scientific world thought that he had ended the search. Then Ceres disappeared from sight, only to be recovered one year later. Astronomers breathed …