Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already visible in the night sky. Here's why it matters to scientists.

And yes, they'll be in a line. But because planets always appear in a line from our Earth-bound vantage, the alignment isn't anything out of the norm. What's less common, according to astronomers ...

Check your compass again — Earth’s north magnetic pole is moving ... is where geomagnetic field lines are vertical. As of this month, the distance between the magnetic dip pole and the ...

Essentially, the six planets will be in ‘alignment’ with each other, appearing somewhat like they’re placed in a line across the ... ‘opposition’ with Earth on Thursday evening, meaning ...

The International Date Line is the vertical wriggly yellow line ... but because I’m on the shady side of the planet, it’s night-time here. The Earth is steadily turning on its axis all the ...