Debris from a Massive Supernova Explosion
February 27, 2014 | NASA
"This artist's concept depicts the explosive death of a massive star, followed by the creation of a disk made up of the star's ashes. [...] Astronomers believe planets might form in this dead star's disk." Quoted from the NASA press release.
Is the Ozone Layer Recovering?
February 17, 2013 | European Space Agency
"Satellites show that the recent ozone hole over Antarctica was the smallest seen in the past decade. Long-term observations also reveal that Earth’s ozone has been strengthening following international agreements to protect this vital layer of the atmosphere." Quoted from the European Space Agency press release.
Moving at 2.5 Million MPH
February 25, 2014 | NASA
"The red arc in this infrared image from NASA's Spitzer Space Telescope is a giant shock wave, created by a speeding star known as Kappa Cassiopeiae. [...]
It is a massive, hot supergiant moving at around 2.5 million mph [...]. But what really makes the star stand out in this image is the surrounding, streaky red glow of material in its path. Such structures are called bow shocks, and they can often be seen in front of the fastest, most massive stars in the galaxy." Quoted from the NASA press release.