See also stories tagged with Sun

Search results for Sun

Astronomy Aug 29, 2024

Hubble observes an oddly organized satellite galaxy

Andromeda III is one of at least 13 dwarf satellite galaxies in orbit around the Andromeda galaxy, or Messier 31, the Milky Way's closest grand spiral galactic neighbor. Andromeda III is a faint, spheroidal collection of ...

Astronomy Aug 29, 2024

Is Betelgeuse actually a binary star?

Betelgeuse has been a favorite among amateur astronomers for many years. However you pronounce it, its unexpected dimming draws even more attention to this red supergiant variable star in Orion. It has a few cycles of variability. ...

Astronomy Aug 29, 2024

New Horizons spacecraft measurements shed light on the darkness of the universe

Just how dark is deep space? Astronomers may have finally answered this long-standing question by tapping into the capabilities and distant position of NASA's New Horizons spacecraft, by making the most precise, direct measurements ...

Astronomy Aug 29, 2024

Using atomic excitations to measure the rotation of spacetime

How would atoms behave near a supermassive object? We know how atoms behave in extremely weak gravity like that at the Earth's surface: They can be excited from a lower energy level to a higher one when an electron absorbs ...

Ecology Aug 29, 2024

Newborn rattlesnakes at a Colorado 'mega den' are making their live debut

A "mega den" of hundreds of rattlesnakes in Colorado is getting even bigger now that late summer is here and babies are being born.

Space Exploration Aug 28, 2024

New algorithms could enhance autonomous spacecraft safety

For humans throughout history, the sky has evoked thoughts of a vast emptiness, of a great vacant dome punctuated during the day by the sun, and at night by numerous tiny spots of light (and periodically by the moon). As ...

Optics & Photonics Aug 28, 2024

Tiny new lasers fill a long-standing gap in the rainbow of visible-light colors, opening new applications

It's not easy making green. For years, scientists have fabricated small, high-quality lasers that generate red and blue light. However, the method they typically employ—injecting electric current into semiconductors—hasn't ...

Materials Science Aug 28, 2024

Engineers develop all-in-one solution to catch and destroy 'forever chemicals'

Chemical engineers at the University of British Columbia have developed a new treatment that traps and treats PFAS substances—widely known as "forever chemicals"—in a single, integrated system.

Analytical Chemistry Aug 28, 2024

Using high resolution mass spectrometry to study fuel chemistry

U.S. Naval Research Laboratory researcher Mark Romanczyk, Ph.D., developed new analytical methods to rapidly analyze fuels and complex petroleum products by using high-resolution mass spectrometry.

Space Exploration Aug 28, 2024

NASA's Europa Clipper gets set of super-size solar arrays

The largest spacecraft NASA has ever built for planetary exploration just got its "wings"—massive solar arrays to power it on the journey to Jupiter's icy moon Europa.

page 2 from 40