Did Powerful Asteroid Impacts Make Venus So Different From Earth? universetoday storybywill
Thanks to missions like the Magellan probe and the extensive radar mapping it conducted in the 1990s, scientists began mapping the surface of Venus in detail. To their surprise, the surface appeared far smoother than expected, which suggested that a certain mechanism was responsible for “recycling” the surface. On Earth, impact craters are largely removed by resurfacing events caused by tectonic activity, but Venus has no such activity to explain its smooth features.
Over time, the intensity of the bombardment declined as the planets achieved more stable orbits. While Earth and Venus formed in the same general area of the inner Solar System, the differences in their distances from the Sun mean that they have different impact histories – i.e., the number of impacts and their outcomes were slightly different.
Singapore Latest News, Singapore Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Scientists “excited” about sample from asteroid Bennu arriving in SeptemberA group of scientists is eagerly awaiting for a sample from the asteroid Bennu that will come September 24 seven years after NASA's OSIRIS-REx spacecraft blasted off Earth to go collect the package.
Read more »
’Perfectly excited’: Canadian scientists await first look at bits from asteroid BennuOn Sept. 24, seven years after it blasted off, NASA’s OSIRIS-REx spacecraft is expected to drop a capsule into the Earth’s atmosphere containing matter plucked from the surface of the asteroid
Read more »
OceanGate founder wants to send people to Venus: 'Eureka!'The co-founder of OceanGate—the expedition company involved in the recent Titanic wreck submersible disaster—is now setting his sights on something even more ambitious than the bottom of the Atlantic: the planet Venus.
Read more »
Queen legend Brian May helped NASA ace its asteroid-sampling mission, new book revealsAsteroid Bennu proved a trickster for NASA's OSIRIS-REx asteroid explorer, rewriting everything scientists had thought about space rocks.
Read more »
OceanGate Cofounder Now Planning Totally Safe Colony Above VenusEver wanted to live on Venus? In a few short decades, you can — or that's what the other OceanGate cofounder claims.
Read more »
Two full moons, colorful meteors, and an asteroid will light up August’s skyGet excited: A full sturgeon supermoon, a full blue supermoon and the most famous meteor shower will light up the skies this month.
Read more »