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The 500-m FAST radio dish, built into a natural basin in southwest China.

ESO Telescope Sees Star Dance Around Supermassive Black Hole, Proves Einstein Right

Figure 1: The arrow indicates the value most compatible with the data. The gray region is disfavored at 99.7% (3-omega) confidence level. Nearly half of the possible values are excluded.

Nitrogen dioxide concentrations over Europe

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Arctic stratospheric ozone reached its record low level of 205 Dobson units, shown in blue and turquoise, on March 12, 2020.Arctic stratospheric ozone reached its record low level of 205 Dobson units, shown in blue and turquoise, on March 12, 2020.

ALS Beamline 5.0.1, pictured here, is one of the beamlines that has been enlisted for COVID-19-related experiments.

This artist's concept shows what exoplanet Kepler-1649c could look like on its surface. The planet is the closest to Earth in size and temperature found yet in data from the Kepler space telescope.

The multi-wavelength 3C 279 jet structure is seen in April 2017. The wavelengths (λ) in millimeters, observation days, and arrays are noted in each panel.

The image at left shows an artist’s conception of the central portion of the galaxy that hosts the quasar SDSS J135246.37+423923.5 viewed at optical wavelengths. Thick winds obscure our view, and imprint signatures of the energetic outflow on the SDSS spectrum. The image at right shows the same artist’s view at infrared wavelengths, as seen by the Gemini GNIRS detector. The thick outflow is transparent at infrared wavelengths, giving us a clear line of sight to the quasar. The infrared spectrum yields the quasar redshift, and from that reference frame, we measured the record-breaking outflow velocity.

The solar wind causes events such auroras, like this one photographed by a U.S. astronaut after docking with the International Space Station. It can also interfere with satellite communications and distort the magnetic field of earth.