On 13 April 2029, an asteroid the size of a large skyscraper, roughly 375 metres across and named Apophis, will sweep past Earth closer than many telecommunications satellites orbit. And for once, we will be able to watch. Under clear, dark skies, an estimate…
On 13 April 2029, an asteroid the size of a large skyscraper, roughly 375 metres across and named Apophis, will sweep past Earth closer than many telecommunications satellites orbit. And for once, we… [+4662 chars]