A physicist investigating black holes has found that, in an expanding universe, Einstein's equations require that the rate of the universe's expansion at the event horizon of every black hole must be a constant, the same ...
Auroras have inspired myths and portents for millennia—but only now, with modern technology dependent on electricity, are we appreciating their true power. The same forces which cause auroras also cause currents that can ...
Planetary Sciences
Jul 10, 2024
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563
The Peach State is not typically a hotbed of seismic activity, but residents in pockets of North Georgia have been feeling some unexpected vibrations lately after the area was jolted by four small earthquakes over the last ...
Environment
Jun 11, 2024
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32
Who knew Earth's upper atmosphere was like alphabet soup? NASA's Global-scale Observations of the Limb and Disk (GOLD) mission has revealed unexpected C- and X-shaped formations in an electrified layer of gas high above our ...
Earth Sciences
Jun 27, 2024
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173
Climate skeptics are scapegoating a weather modification technique known as cloud seeding to deny the role of global warming in historic floods that have recently devastated countries from Brazil to Kenya.
Environment
Jun 11, 2024
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81
When stars collapse, they can leave behind incredibly dense but relatively small and cold remnants called neutron stars. If two stars collapse in close proximity, the leftover binary neutron stars spiral in and eventually ...
Astronomy
Jun 18, 2024
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840
Climate models are a key technology in predicting the impacts of climate change. By running simulations of the Earth's climate, scientists and policymakers can estimate conditions like sea level rise, flooding, and rising ...
Earth Sciences
Jun 11, 2024
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58
Both the Milky Way and a galaxy known as M87 have supermassive black holes at their core. These are the two largest black holes we know about and the Event Horizon Telescope has just captured stunning images of their event ...
Astronomy
Jul 1, 2024
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51
Last August, the picturesque Himalayan kingdom of Bhutan halved to US$100 per night a charge levied on international tourists. The fee recognized the "important role of the tourism sector in generating employment, earning ...
Social Sciences
Jul 3, 2024
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2
More than 1,000 people have died at this year's hajj pilgrimage in extreme heat in Saudi Arabia, an AFP tally showed on Thursday.
Environment
Jun 20, 2024
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16
