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Posts by Deborah Byrd

View larger. | Artist's concept of a double black hole, at the heart of a quasar.
Science Wire | Aug 31, 2015

Double black hole powers nearby quasar

One black hole may be 4 million solar masses, about the same mass as our Milky Way’s central black hole. The other may be 150 million solar masses.

Skywatcher, by Predrag Agatonovic.
Tonight | Aug 31, 2015

September 2015 guide to the five visible planets

Saturn in the evening. Mercury at nightfall from southerly latitudes. Venus and Mars before dawn. Jupiter emerges from dawn glow in mid-September.

Today's Image | Aug 31, 2015

Ethereal beach

Gorgeous photo of one of the most beautiful beaches in the Pacific Northwest.

Image via Central Pacific Hurricane Center, Honolulu, Hawaii
Science Wire | Aug 30, 2015

Record-breaking three Category 4 hurricanes in Pacific

First recorded occurrence of three Category 4 hurricanes in central and eastern Pacific basins at once. Hurricane Center in Honolulu issuing advisories on all three.

View larger. | This perspective view shows the path of NASA's New Horizons spacecraft (yellow) through the outer solar system and the Kuiper Belt.  Read more about this image.
Science Wire | Aug 30, 2015

New Horizons’ potential next flyby target

New Horizons will perform four maneuvers in October and November to veer toward 2014 MU69 – an object in the Kuiper Belt – aiming for a January 1, 2019 encounter.

View larger. | The narrow F ring located just outside of the outer edge of the main rings. Two satellites sandwiching the F ring slightly above and to the left of the center of the image are the shepherd satellites Prometheus (inner orbit) and Pandora (outer orbit).
Science Wire | Aug 28, 2015

Origin of Saturn’s F ring and shepherd moons

The F ring, Saturn’s outermost ring, is perhaps the most active ring in our solar system, with features changing on a timescale of hours.

View larger. | The Twin Jet Nebula, aka PN M2-9, is what's called a planetary nebula, formed, in this case, when the central object is not a single star, but a binary system, Studies have shown that the nebula’s size increases with time, and measurements of this rate of increase suggest that the stellar outburst that formed the lobes occurred just 1200 years ago.  Image via ESA/Hubble and NASA.
Today's Image | Aug 27, 2015

Twin Jet Nebula

New Hubble Space Telescope image of a planetary nebula, created by two aging stars that have shucked off their outer layers, but still orbit each other.

Earth's shadow is the blue-grey band closest to the horizon.  The Belt of Venus is the pink band above the shadow.
Tonight | Aug 27, 2015

See Earth’s shadow and Belt of Venus

Earth’s shadow is a deep blue-grey, darker than the twilight sky. The pink band above the shadow – in the east after sunset, or west before dawn – is called the Belt of Venus.

Today's Image | Aug 26, 2015

Graceful arc of Venus before dawn

Animation of the planet Venus, now returning to the east before dawn. The animation shows Venus in the morning sky from August 2015 through March 2016.

The nautilus known as Allonautilus scrobiculatus off the coast of Ndrova Island in Papua New Guinea. Image via Peter Ward
Science Wire | Aug 25, 2015

Rediscovering a rare South Pacific nautilus

In July, scientists spotted a rare South Pacific nautilus – considered to be one of the rarest animals on Earth – for the first time in three decades.