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Posts by
Deborah Byrd
Webb Telescope new launch date December 18
The Webb Telescope is the successor to the Hubble Space Telescope. NASA said on September 8 that the new launch date is December 18.
September 8, 2021
Star collision triggers supernova explosion
Star collision triggers supernova! Dramatic evidence that a black hole or neutron star spiraled its way into the core of a companion star and ... boom!
September 7, 2021
Crepuscular rays: Photos from our readers
Those beams of light shooting out from the horizon or down from the clouds are called crepuscular rays, or sunrays. Beautiful, mysterious and very noticeable.
September 7, 2021
Orion’s Belt points to Sirius on September mornings
Sirius is the sky's brightest star. But sometimes brighter planets outshine it. Orion's Belt is your ticket to identifying Sirius.
September 7, 2021
Zodiacal light: All you need to know
The zodiacal light is an eerie light extending up from the horizon before true dawn begins. Southern Hemisphere? Look after sunset!
September 6, 2021
Visible planets – and more – in September 2021
Visible planets in September 2021. Venus, Jupiter and Saturn bright in the evening from all of Earth. Mercury grand for the Southern Hemisphere.
September 1, 2021
Aurora alert! Pair of CMEs to jolt Earth’s magnetic field
Aurora alert! A pair of coronal mass ejections will reach Earth September 1-2, 2021. Though not dangerous to satellites or the grid, they might cause auroras.
September 1, 2021
What flows into a galaxy ‘cleaner’ than what flows out
Pure hydrogen and helium gas flows into a galaxy. It's used to make new stars. Those stars make new elements, which are later released back to intergalactic space.
August 30, 2021
Late summer 2021 fires, California, seen from space
NASA's Terra satellite caught images of streamers of smoke from late summer 2021 fires in California during its 115,254th orbit of Earth.
August 26, 2021
Rare lunar halo – an odd-radius halo – over India
A common halo around the sun or moon has a radius of 22 degrees. It's called a 22-degree halo. But here's a rare lunar halo: an odd-radius halo.
August 25, 2021
