While only a fraction remains of the number of blue whales that once roamed the seas, their numbers are on the rise.
, and the Antarctic sub-species is listed as critically endangered – its population is thought to be at less than 1% of its pre-whaling size.1. The blue whale is the largest animal to have ever lived
3. Like all whales, the blue whale evolved from a four-legged land mammal that lived around 48 million years ago
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Eavesdropping on the Earth Itself – A New Groundbreaking PlanCurrent fiber-optic cable systems could be leveraged to create a cost-effective, real-time ocean-to-land observatory, providing the possibility to monitor everything from ships, to earthquakes, to whales. A total of over 1.2 million kilometers of fiber-optic cables run across the globe, transmitt
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Meet the Team Simulating Europa's Surface — on Earth'Inside the Ark are treasures beyond your wildest aspirations. You want to see it opened as well as I.' Indiana Jones, meet EuropaClipper. Ice grows in a vacuum chamber nicknamed 'The Ark,' built to mimic conditions on an icy Moon of Jupiter. See inside:
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All The Arthropods That Call Earth's Land Home Weigh More Than Humans And LivestockWithout the buzzing, fluttering, scuttling or creeping crawlies our world would be in strife.
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An Earth-sized Planet around an M5 Dwarf Star at 22 pcWe report on the discovery of an Earth-sized transiting planet ($R_p=1.015\pm0.051\,R_\oplus$) in a $P=4.02$ day orbit around K2-415 (EPIC 211414619), an M5V star at 22 pc. The planet candidate was first identified by analyzing the light curve data by the K2 mission, and is here shown to exist in the most recent data from TESS. Combining the light curves with the data secured by our follow-up observations including high-resolution imaging and near infrared spectroscopy with IRD, we rule out false positive scenarios, finding a low false positive probability of $2\times 10^{-4}$. Based on IRD's radial velocities of K2-415, which were sparsely taken over three years, we obtain the planet mass of $3.0\pm 2.7\,M_\oplus$ ($M_p|7.5\,M_\oplus$ at $95\,\%$ confidence) for K2-415b. Being one of the lowest mass stars ($\approx 0.16\,M_\odot$) known to host an Earth-sized transiting planet, K2-415 will be an interesting target for further follow-up observations, including additional radial velocity monitoring and transit spectroscopy.
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