2 天之前 · The Grand Canyon in Arizona got carved by water over millions of years of slow but steady erosion. Two similarly-sized canyons on the moon got carved by flying rocks in about ten minutes.

2 天之前 · Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object slammed into the moon 3.8 billion years ago. CNN values your feedback 1.

1 天前 · The debris landed like missiles, digging out two canyons comparable in size to Arizona’s Grand Canyon in barely 10 minutes. The latter, by comparison, took millions of years to form.

2 天之前 · CAPE CANAVERAL, Fla. (AP) — New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons on the lunar far side.. That’s good news for scientists and NASA, which is looking to land astronauts at the south pole on the near, Earth-facing side untouched by that impact and containing older rocks in original …

2 天之前 · Two canyons near the south pole of the moon rival the Grand Canyon, both in depth and length. Unlike the sinuous chasm in Arizona, the two lunar canyons, known as Vallis Schrödinger and Vallis ...

3 天之前 · Whereas Arizona’s Grand Canyon was carved by water over the last 5 to 6 million years and from integrated paleocanyons that formed over 70 million years 56,57, the Moon’s Vallis Schrödinger ...

3 天之前 · While the Grand Canyon took millions of years to form, the two grand canyons on the Moon were carved in less than 10 minutes.” The impacting asteroid or comet likely hit the lunar surface with a speed of nearly 55,000 kilometers per hour (35,000 miles per hour).

2 天之前 · The Grand Canyon in Arizona got carved by water over millions of years of slow but steady erosion. Two similarly-sized canyons on the moon got carved by flying rocks in about ten minutes. That's because these two canyons formed in the wake of an asteroid or comet smashing into the moon, a crash that sent streaks of rocky debris flying at incredible speeds, according …

2 天之前 · While the Grand Canyon took millions of years to form, the two grand canyons on the Moon were carved in less than 10 minutes.” The impacting asteroid or comet likely hit the lunar surface with a speed of nearly 55,000 kilometers per hour (35,000 miles per hour).

2 天之前 · Today, the Grand Canyon reaches up to 18 miles (29 kilometers) wide and sinks more than a mile (1,857 meters) below the arid Arizona landscape — a majestic sight with staggering proportions.