Earth’s closest twins have been found. The two most Earth-like planets – Kepler-438b and Kepler-442b have been found orbiting red dwarf stars that are smaller and cooler than our Sun. Kepler-438b circles its star every 35 days, while Kepler-442b completes one orbit every 112 days. With a diameter just 12% bigger than Earth, Kepler-438b has a 70% chance of being ... Read More »
In a bid to monitor Earth better, Nasa has successfully installed and activated its first Earth-observing instrument — the ISS-RapidScat — on the International Space Station (ISS). The ISS-RapidScat will monitor ocean winds for climate research as well as weather predictions and hurricane monitoring. The instrument has already begun collecting data. “Its antenna began spinning and it started transmitting and ... Read More »
Panspermia Perhaps life did not begin on Earth at all, but was brought here from elsewhere in space, a notion known as panspermia. For instance, rocks regularly get blasted off Mars by cosmic impacts, and a number of Martian meteorites have been found on Earth that some researchers have controversially suggested brought microbes over here, potentially making us all Martians ... Read More »
Much of the water on Earth and elsewhere in the solar system likely predates the birth of the sun, a new study reports. The finding suggests that water is commonly incorporated into newly forming planets throughout the Milky Way galaxy and beyond, researchers said — good news for anyone hoping that Earth isn’t the only world to host life. “The implications of ... Read More »
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