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Tag archives: planetary science

Solarquest, Pluto and the importance of New Horizons

A photo of the board game Solarquest, which contains images of all nine planets, several of their moons, and a path between them

The Solarquest board, complete with planets, moons and artificial satellites.

By Margaret Harris

Last night, in honour of the New Horizons mission to Pluto, I pulled out my copy of Solarquest. This classic board game was a childhood favourite of mine, and it’s basically Monopoly in space: instead of buying properties named after streets in Atlantic City, New Jersey (or London, if you’re British), you buy planets, moons and artificial satellites. Then, when your fellow players land on an object you own, you charge them rent.

Such nostalgia is all well and good, I hear you say, but what’s it got to do with New Horizons or Pluto? Well, Solarquest’s inventors clearly took their science seriously. By board game standards, there’s quite a lot of physics in it. For example, you can’t leave a planet unless you roll a number high enough to overcome its gravitational pull, and its Monopoly-like property deed cards include facts about each planet and moon as well as their prices.

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Pluto fly-by: New Horizons sails past cold, distant world

Image of Pluto todate taken by the New Horizons spacecraft

Perfect view: the sharpest image of Pluto to date taken by the New Horizons spacecraft. (Courtesy: NASA)

By Tushna Commissariat

After trundling through our solar system for more than 10 years, NASA’s New Horizons mission made its closest approach to the dwarf planet Pluto earlier today, at 12:49 BST. It was a mere 12,472 km from the planet’s surface – roughly the same distance from New York to Mumbai, India – making it the first-ever space mission to explore a world so far from Earth.

If you want to find out more about the New Horizons mission, read this recent news story by physicsworld.com editor Hamish Johnston. Above is best close-up view of this cold, unexplored world that the spacecraft sent back before its closest approach (when it was still 766,000 km from the surface), revealing in clear detail many of the planet’s surface features, including the “heart” at the bottom.

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Uncovering the truth in social media

Illustration of viral social-media

Truth and lies in the web of social media. (Courtesy: Shutterstock)

By James Dacey

“On 27 August…Mars will look as large as the full Moon.”

This was a sentence from a widely circulated e-mail in 2005, in the lead up to one of the closest encounters between Earth and Mars in recorded history.

That our neighbouring planet could appear as prominent as the Moon is, of course, complete claptrap. Since the “Mars hoax” first appeared in 2003, it has re-emerged several times over the past decade.

The Mars hoax is an example of a “meme”, a piece of content or an idea that is spread virally across Internet networks. These days, memes such as this can spread with increasing speed and reach, thanks to the ever-growing expansion of social-media sites such as Facebook and Twitter.

Now, however, researchers at MODUL University Vienna are setting out on the ambitious task of assessing the truthfulness of information that goes viral on social-media sites. The folks behind the project, called PHEME, say that one of their major aims is to acquire an improved understanding of the types of dubious information that are most likely to spread across networks.

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