Mars is getting bright! But it’s still up between midnight and dawn. Between now and July, the red planet will shift over into the evening sky … and then the drama will begin!
Artist's concept of Mars in opposition to the sun. At such times, Earth passes between the sun and Mars. Not to scale! Image via NASA.
Mysterious asteroid 2015 BZ509 – currently nestling in Jupiter’s orbit – became less mysterious once astronomers realized it’s an immigrant, captured from another solar system.
Images of 2015 BZ509 obtained at the Large Binocular Telescope Observatory (LBTO) that established its retrograde co-orbital nature. The bright stars and the asteroid (circled in yellow) appear black and the sky white in this negative image.
Credit: C. Veillet / Large Binocular Telescope Observatory
This object was likely born in the Asteroid Belt between Mars and Jupiter, then flung billions of miles to the Kuiper Belt on the edge of the solar system.
This artist’s impression shows the exiled asteroid 2004 EW95, the first carbon-rich asteroid confirmed to exist in the Kuiper Belt and a relic of the primordial Solar System. This curious object likely formed in the asteroid belt between Mars and Jupiter and must have been transported billions of kilometres from its origin to its current home in the Kuiper Belt. Image via ESO/M. Kornmesser.
A large explosion happened Friday night into Saturday at Hawaii’s Kilauea Volcano. The 1st serious injury is reported. USGS warns of the release of toxic gases in a plume called a laze, which happens when molten lava hits sea water. Latest images and videos here.
Helicopter overflight of K?lauea Volcano's lower East Rift zone on May 19, 2018, around 8:18 AM, HST. ‘A‘? lava flows emerging from the elongated fissure 16-20 form channels. The flow direction in this picture is from upper center to the lower left. Image via USGS.
How many unseen worlds orbit these stars? The TESS planet-hunter is designed to find nearby exoplanets, between 30 and 300 light-years away.
How many unseen worlds orbit these stars? This test image from 1 of the 4 cameras aboard the Transiting Exoplanet Survey Satellite (TESS) captures a swath of the southern sky along the plane of our galaxy. TESS is expected to cover more than 400 times the amount of sky shown in this image when using all 4 of its cameras during science operations. Image via NASA/MIT/TESS.
Report on CFC-11 – an illegal chemical responsible for ozone-depletion in Earth’s atmosphere – now apparently on an upswing again. Meanwhile, new direct evidence the ban on CFCs is working and the ozone hole is recovering.
NOAA weather balloon floats over the South Pole in this timelapse image. The balloon was carrying instruments to measure atmospheric ozone. Image via NOAA.
A squall line of severe thunderstorms swept over New York City and the surrounding area last Tuesday, creating dramatic skies.
The returning moon and brightest planet were near each other in the sky the last 2 evenings. Don’t miss these gorgeous photos from the EarthSky community.
Cloud streets are long rows of cumulus clouds oriented parallel to the direction of the wind. Check out these cool images!