Chinese astronomers have employed NASA's Transiting Exoplanet Survey Satellite (TESS) to observe an eclipsing binary of the ...

ESA's Solar Orbiter spacecraft has provided crucial data to answer the decades-long question of where the ... Solar Orbiter, operating at 128 solar radii (89 million km), then crossed the stream ...

UY Scuti's large radius does not make it the most massive, or heaviest, star. That honor goes to R136a1 , which weighs in at about 300 times the mass of the sun but only about 30 solar radii.

By the time the probe reached about 12 solar radii from the surface of the sun — 5.2 million miles — the data were clear that the probe was passing through jets of material, rather than mere ...

On Christmas Eve, December 24, Parker will fly just 6.1 million kilometers above the surface of the sun, or 9.86 solar radii from the sun’s center, ten times closer than Mercury orbits the star ...