Scientists still aren't sure how Venus' environment become so out-of-control and inhospitable.
has been the center of attention in the solar system for a long time, it is usually forgotten that Venus is actually the most similar planet to Earth in terms of size and mass," Colby Ostberg, a PhD student at UC Riverside and lead author of the study, told Space.com in an email."In addition, past works have shown that Venus could have maintained habitable surface conditions up until 1 billion years ago, which means thecould have had two habitable worlds in the past.
"Oxygen is often considered a potential exoplanet biosignature because, on Earth today, it is almost entirely the result of photosynthetic life," Dr. Eddie Schwieterman, who is an Assistant Professor of Astrobiology at UC Riverside and a co-author on the study, told Space.com in an email."However, one potential abiotic way of accumulating oxygen in a planetary atmosphere is through an extended runaway greenhouse.
An artist's representation of the 'habitable zone,' the range of orbits around a star where liquid water may exist on the surface of a planet.
United States Latest News, United States Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Scientists erupt at NASA gutting funding for crucial Venus missionThe mood in the planetary science community is grim.
Read more »
Five Planets Line Up in the Night Sky TonightTonight offers up a rare chance to see five planets in the night sky.
Read more »
5 planets will align in the night sky this week. Here’s how to watch itMercury, Jupiter, Venus, Mars and Uranus will appear strung in a line near the moon.
Read more »
How to see Mercury, Venus, Mars, Jupiter and Uranus at the same timeA rare planetary alignment has arrived, and all you have to do to enjoy it is to know where and when to look.
Read more »
Naked Venus statue found in Roman garbage dump in FranceUnearthed in France is a Roman garbage dump that contains a statue of a naked Venus and other relics.
Read more »
5 planets will align across the sky on Tuesday night. Here's how to see themYou can catch a five-planet alignment tonight as Jupiter, Mercury, Venus, Uranus and Mars will appear across the night sky.
Read more »