Space

seasonal asymmetry birkeland currents

Birkeland currents stronger in the northern hemisphere, vary with the season

ESA’s Swarm mission has discovered that this seasonal variation of Birkeland currents, strong electric currents in the upper atmosphere, is not the same in the north and south polar regions. Named after Kristian Birkeland, the scientist a century ago who first...

March 23, 2017

Atmospheric supersonic plasma jets discovered

Supersonic plasma jets discovered

Scientists analyzing data obtained by Swarm trio of satellites have discovered supersonic plasma jets high up in our atmosphere that can push temperatures up to almost 10 000 °C (18 000 °F). The discovery was presented at this week’s Swarm Science...

March 23, 2017

mapping space dust in 3d

3-D map of space dust

A new study led by Edward F. Schlafly is providing a detailed, 3-D look at dust on a scale spanning thousands of light-years in our Milky Way galaxy. This dust map is of critical importance for the Dark Energy Spectroscopic Instrument (DESI), a Berkeley Lab-led...

March 22, 2017

asteroid 2017 FD3 flyby march 17 2017

Asteroid 2017 FD3 flew past Earth at 0.45 LD

A newly discovered asteroid 2017 FD3 flew past Earth at a distance of 0.45 LD (~172 800 / 107 372 miles) from the surface on March 17, 2017, two days before it was discovered. 2017 FD3 has an estimated size between 7.8 and 17 m (25 - 55 feet) and it belongs to the...

March 22, 2017

highest resolution map of earth s lithospheric magnetic field

Highest resolution map of Earth’s lithospheric magnetic field

After three years of collecting data, Swarm mission scientists have produced the highest resolution map of Earth’s lithospheric magnetic field from space to date. The dataset combines measurements from ESA’s Swarm satellites with historical data from the...

March 21, 2017

bright blue fireball over sweden march 20 2017

Very large blue fireball illuminates sky over Sweden

A very large blue fireball illuminated the sky over Sweden around 20:30 UTC (21:30 CET) on March 20, 2017. The event was so powerful that the whole sky lit up, Swedish All Sky Meteor Network astronomers said. Images of the event immediately started appearing on...

March 21, 2017

asteroid 2017 FM1 flyby march 20 2017

Asteroid 2017 FM1 flew past earth at 0.32 LD

A newly discovered asteroid designated 2017 FM1 flew past Earth at a distance of 0.32 LD (~122 880 km / 76 354 miles) from the surface at 22:38 UTC on March 20, 2017. This is the 11th asteroid to flyby within 1 lunar distance since the start of the year and the...

March 21, 2017

asteroid 2017 FN1 flyby march 20 2017

Asteroid 2017 FN1 flew past Earth at 0.15 LD

A newly discovered, car-sized asteroid 2017 FN1 flew past Earth at a distance of 0.15 LD (~57 600 km/ 35 790 miles) from the surface at 21:01 UTC on March 20, 2017. This is the 10th known asteroid to flyby Earth within 1 lunar distance since the start of the year....

March 21, 2017

asteroid 2017 FS flyby march 19 2017

Asteroid 2017 FS flew past Earth at 0.27 LD

A newly discovered asteroid 2017 FS flew past Earth at 0.27 LD (103 680 km / 64 423 miles) from the surface at 03:33 UTC on March 19, 2017. It was first observed at Mt. Lemmon Survey on March 17. The estimated diameter of this object is between 4.2 and 9.4 m (13.8 -...

March 19, 2017

discovery of runaway star yields clues to breakup of multiple star system

Discovery of runaway star yields clues to breakup of multiple-star system

As British royal families fought the War of the Roses in the 1400s for control of England's throne, a grouping of stars was waging its own contentious skirmish — a star war far away in the Orion Nebula. The stars were battling each other in a gravitational...

March 19, 2017

vancouver fireball march 17 2017

Fireball streaks across Vancouver sky, Canada

A bright meteor fireball streaked across Vancouver sky at 03:40 UTC on March 17, 2017 (21:40 PDT on March 16) and was caught on car dash camera. People from Seattle, Washington also reported seeing the event. The American Meteor Society received 7 eyewitness reports...

March 17, 2017

fireball over orange nsw australia march 15 2017

Bright fireball over Orange, Australia caught on camera

A bright meteor fireball with a fiery tail was recorded over Orange, Australia at 08:45 UTC (19:45 AEDT) on Wednesday, March 15, 2017. The footage was taken from a car traveling on the Escort Way near Boree, New South Wales. President of the Orange Planetarium Inc.,...

March 16, 2017

fireball august 13 2015

Fireball illuminates sky over Pakistan, causing panic

A bright meteor fireball illuminated the sky over northern Pakistan around 16:00 UTC (21:00 PKT) on Wednesday, March 15, 2017, causing panic among residents. The object was traveling very low and was followed by several, powerful blasts some 5 seconds later. "I...

March 16, 2017

starquakes reveal surprises about the birth of stars study

Starquakes reveal surprises about the birth of stars

Just as seismologists use earthquakes to understand the interior of our planet, astronomers use starquakes to understand the interior of stars. In one such study, an international team provided unprecedented insights into conditions in the turbulent gas clouds where...

March 15, 2017

comet encke on soho lasco c3 image at 10 30 march 11 2017

Comet Encke swings around the Sun as seen by solar observatory

For the past couple of days, Comet 2P/Encke is visible through the eyes of ESA/NASA solar observatory SOHO as it swings around the Sun. The comet made its closest approach to the Sun - perihelion - at 02:11 UTC on March 10, 2017. Encke is a periodic comet that...

March 13, 2017

jpl finds satellite lost in moon orbit

JPL finds satellite lost in Moon's orbit

A new technological application of interplanetary radar pioneered by scientists at NASA's Jet Propulsion Laboratory in Pasadena, California, has successfully located spacecraft orbiting the moon - one active, and one dormant. This new technique could assist...

March 09, 2017

first lightning detector in geostationary orbit

First lightning detector in a geostationary orbit

The first lightning detector in a geostationary orbit, the Geostationary Lightning Mapper (GLM), aboard GOES-16, is now transmitting data never before available to forecasters. The mapper continually looks for lightning flashes in the Western Hemisphere, so...

March 06, 2017