Salty streaks have been discovered on Mars, which could be a sign that salt water seeps to the surface in the summers. Scientists have previously observed dark streaks (see image above) on the planet’s slopes which are thought to have resulted from seeps of water wetting surface dust. Evidence of salts left
Browsing: Nasa
When New Horizons phoned home on Wednesday morning after its close encounter with Pluto, there was jubilation and excitement. Now, as Pluto retreats into the distance, the slow
A US spacecraft became the first to fly past the dwarf planet Pluto on Tuesday, capping the exploration of the solar system, scientists said. Scientists at Johns Hopkins Applied Physics Laboratory
Imagine launching a robotic spacecraft on a 10-year mission to land on a comet 600m kilometres from Earth knowing that you will not be able to make any physical repairs to the craft during the journey. This daunting engineering challenge has been the ultimate goal of the European Space Agency’s Rosetta
The aircraft industry is expecting a seven-fold increase in air traffic by 2050, and a four-fold increase in greenhouse gas emissions unless fundamental changes are made. But just how “fundamental” will those changes need to be
Two planets as friendly to life as the Earth have been found. Now, Harvard astronomers have confirmed the existence of life out there is just a matter of time, using an ingenious trick with starlight. In an announcement mostly
Scientists were preparing to send Curiosity on its first test drive over the billion-year-old rocks of Mars and said a busted wind sensor wouldn’t jeopardise its mission of determining whether life could exist there. Engineers at Nasa’s Jet Propulsion Laboratory in Pasadena turned four of the rover’s six wheels
The Square Kilometre Array (SKA) is unlikely to win a Nobel prize, but will give deeper understanding to phenomena such as dark matter and how the universe started. Vishnu Vejjala, research chair in theoretical particle cosmology at the University of the Witwatersrand, said the US$2bn SKA
Johannesburg-based open-source software start-up Snapt < http://www.snapt-ui.com/> launched only in August 2011 but already it’s drawing interest from top drawer customers, mainly international clients, including the US National Aeronautics & Space Administration (Nasa). The company uses open-source software
Simon Dingle is out this week, so Jon Tullett hosts episode 83 of SA’s most popular technology podcast. He is joined in the studio by Duncan McLeod, Brett Haggard and Toby Shapshak. They discuss, among other things, First National Bank’s Internet banking outage