Distant water exoplanets might have oceans thousands of miles deep. That’s in contrast to Earth’s ocean, which is about 6.8 miles (about 11 km) deep at its deepest point. Source: https://earthsky.org/space/exoplanet-water-worlds-deep-oceans-2019-study…
Tag: Caltech
Researchers find icy corridor on Saturn’s giant moon
While searching for the source of methane on Saturn’s large moon Titan, researchers found a completely unexpected corridor of methane ice wrapping nearly halfway around the moon. Source: https://earthsky.org/space/corridor-methane-ice-titan-saturn-moon…
Insight lander captures sunrises, sunsets on Mars
Sunrises and sunsets on Mars, captured by the camera on NASA’s InSight lander. Source: https://earthsky.org/space/mars-insight-lander-sunset-sunrise-photos…
Preparing for asteroid Apophis
Astronomers are meeting today at the Planetary Defense Conference to discuss plans to observe asteroid 99942 Apophis, a relatively large asteroid that’ll sweep past Earth safely – but rather closely – in 2029. Source: https://earthsky.org/space/preparing-asteroid-apophis-april-13-2029-passage…
You saw the 1st photo of a black hole? Now see its home galaxy
The 1st-ever photo of a giant black hole made headlines earlier this month. Now see some beautiful images of M87, the great galaxy that it calls home, located some 55 million light-years from Earth. Source: https://earthsky.org/space/1st-black-hole-photo-see-m87-its-home-galaxy…
Mystery solved: Mercury has a solid heart
Here’s how NASA’s MESSENGER mission – which orbited Mercury from 2011 to 2015 – let scientists finally solve one of Mercury’s biggest mysteries, about whether its innermost core is liquid or solid. Source: https://earthsky.org/space/mystery-solved-mercury-solid-inner-core-messenger…
Listen to 1st-ever recorded marsquake
On April 6, NASA’s Mars InSight lander captured the 1st-ever audio of a likely “marsquake.” Source: https://earthsky.org/space/insight-lander-marsquake-audio…
Scientists find new surprises about Titan’s lakes
Cassini data now reveal that some of Titan’s lakes are surprisingly deep. Source: https://earthsky.org/space/scientists-find-new-surprises-about-titans-lakes…
Southern California Gets Ten Times As Many Earthquakes As We Thought
More than 1.81 million tiny quakes hit the region in nearly ten years.Source: https://motherboard.vice.com/en_us/article/j5wqng/southern-california-gets-ten-times-as-many-earthquakes-as-we-thought…