Trojan asteroid seen in Earth's orbit by Wise telescope. Read more about sharing. Astronomers have detected an asteroid not far from Earth, moving in the same orbit around the Sun. The 200-300m-wide rock sits in front of our planet at a gravitational sweet spot, and poses no danger.
Calories Burned. A half mile is a relatively short distance to run, so you shouldn't expect a big calorie burn. According to the website Cool Running, a 200-pound person will burn 79 calories running half a mile. A 175-pound person will use less energy, burning just 69 calories per half mile.
How Speed Affects Calories Burned. The faster you run, the more calories you'll burn. A 160-pound person running at a 12-minute pace (5 mph) for 30 minutes would burn 290 calories. The same person running at a 10-minute-per-mile pace (6 mph) would burn 363 calories in 30 minutes.