A Mars-sized planet was found just 31 light-years away, orbiting its star every eight hours and having 55 percent the mass of the Earth, leading scientists to conclude it’s mostly made of an iron-nickel core. Plus, water on Earth, a huge comet, and a review of a Canon lens.
An analysis of over nine million samples of coccoliths whose ages span several million years has led scientists to conclude that changes in Earth’s orbit may have influenced changes in the size and shape of the microscopic algae. Plus, Europe contemplates geologic threats, and a comet is in this week’s What’s Up.
Scientists have measured the composition of the hot Jupiter exoplanet WASP-77Ab using an instrument at the Gemini South observatory as the first step in creating a catalog of exoplanetary atmospheres. Plus, looking for ocean worlds and this week’s What’s Up.
An analysis of the most recent sample taken from the Moon and returned by the Chang’e-5 mission shows that the basaltic rock is about two billion years old. This age implies a previously unknown heat source in the region. Plus, how plants and animals record climate change and this week’s What’s Up.
Scientists analyzed the results of a stellar occultation when Pluto passed in front of a distant star and found that Pluto’s atmosphere is freezing to the surface as the planet moves away from the Sun. Plus, an interview with Dr. Kat Volk regarding Transneptunian space and the possibility of Planet 9.
Contrary to recent clickbait headlines, a recently discovered comet that likely originated in the Oort Cloud will not be coming near Earth. The closest point of the icy body’s orbit is between Saturn and Jupiter. Plus, how floods shaped Mars, how microbes helped clover grow, and this week’s What’s Up.