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Earth & Space

showing 16-20 of 191 breaks

Introducing the Micronova

The Transiting Exoplanet Survey Satellite (TESS) operating since 2018, monitors the brightness variations of hundreds of thousands of objects in the sky. Amongst the targets we monitor are a few hundred accreting white dwarfs. Three of these have revealed rapid and energetic bursts of light... click to read more

Views 3180
Reading time 3 min
published on Jul 24, 2023
Poverty and unpreparedness make monsters out of ordinary hazards

 Historical and contemporary data show that ordinary hazards turn into disasters in poor and less prepared nations. It is true of earthquakes, floods, volcanic eruptions etc. Examples include the more than 80,000 deaths resulting from the magnitude 7.6 earthquake in Muzaffarabad, Pakistan in 2005, and... click to read more

Views 1089
Reading time 4 min
published on Jul 17, 2023
The missing galaxies in the early universe

Most of the stars in the universe are born, live, and die within a galaxy – a system containing millions (or billions) of stars. Galaxies are extremely numerous in the universe. No matter where we look in the night sky, or in which direction we... click to read more

Views 1126
Reading time 4 min
published on May 29, 2023
Pluto orbits in elegant arrangement with the giant planets

Soon after Pluto was discovered in 1930, astronomers learned that its orbit overlaps Neptune's orbit and that it’s rather tilted, compared to the nearly common plane of the other planets. Propagating its orbit into the past and the future then revealed the surprising property... click to read more

Views 1436
Reading time 3 min
published on May 24, 2023
The mystery of fast radio bursts: another piece to the puzzle that doesn’t quite fit

In 2007, Duncan Lorimer and his colleagues announced the discovery of a flash of radio light that was not only extremely short and bright but that also seemed to be coming from a galaxy far away from our own. At the time, the astronomical community... click to read more

Views 1146
Reading time 4 min
published on May 17, 2023