A meteorite weighing as much as a small car smashed into the moon producing a flash that would have been easily visible from Earth.
Three years of waiting paid off today as scientists received the first signal from a comet-chasing spaceship that has been in 'hibernation'.
The European Space Agency's Rosetta spacecraft is being woken up from its "deep space hibernation" to resume its comet-chasing mission.
A capsule carrying a US-Russian crew back to Earth after nearly six months on the International Space Station has landed safely on the steppes of Kazakhstan.
Nasa said that the Soyuz capsule carrying American Mike Hopkins and Russians Oleg Kotov and Sergey Ryazanskiy touched down as scheduled, south east of the town of Dzhezkazgan. They spent 166 days in orbit on the space station.
Nasa's has announced the discovery of 715 new planets, it announced today. This "bonanza" of newly verified worlds was discovered by the Kepler mission and orbit 305 stars, revealing multiple-planet systems similar to our own, some of which could support life.
Around 95% of the planets discovered are smaller than Neptune - which is four times the size of Earth- which means that the number of smaller 'earth-like' planets known to scientists has increased dramatically to 1,700.
The Kepler mission was launched in 2009 and its aim is to survey our region of the Milky Way galaxy to discover smaller Earth-like planets in the 'habitable zone', an area of distance from a star where the conditions of an orbiting planet may be suitable for life-giving liquid water.
Four of these new planets are less than 2.5 times the size of Earth and orbit in their sun's habitable zone.
One of these new habitable zone planets, Kepler-296f, orbits a star half the size and a fraction as bright as our sun. Kepler-296f is twice the size of Earth, but scientists do not know whether the planet is a gaseous world, or it is a water world encased by deep ocean.
The Mars Curiosity Rover has tweeted an image of the twilight sky and Martian horizon which includes Earth as the brightest point of light in the night sky.
Earth sits left of centre in the picture, with moon is just below.
The view was captured about 80 minutes after sunset on the 529th Martian day, or sol, of the rover's work on Mars (31st January 2014). The image has been processed to remove effects of cosmic rays.
A human observer with normal vision, if standing on Mars, could easily see Earth and the moon as two distinct, bright "evening stars."
An exceptionally close stellar explosion discovered on January 21 has become the focus of observatories around and above the globe, including several NASA spacecraft.
The blast, named SN 2014J, occurred in the galaxy 'M82' and lies about 12 million light-years away. This makes it the nearest optical supernova in two decades and potentially the closest type of supernova to occur during the life of currently operating space missions.
There was much cheering and back-slapping at the European Space Agency after a three-year bet paid off.
Watch the moment on the video below (from one minute and 30 seconds in):
This small green blip in the graphs below was the sign that scientists at the European Space Agency were waiting for to show that the Rosetta spaceship had awoken from its deep slumber:
The European Space Agency (ESA) has said it will take at least an hour-and-a-half to get a health report from the Rosetta spacecraft:
With one-way signal time of 45mins, it will take at least 90mins to get health report from @esa_rosetta - for now basic radio signal only
The European Space Agency says it has received a signal from its Rosetta spacecraft after a three-year sleep: