Space - page 6

jupiter at opposition april 7 2017

Jupiter at opposition, closest to Earth in 2017

Planet Jupiter is at opposition on April 7, 2017, meaning that the Sun, Earth and Jupiter will form a straight line. At around the same time that Jupiter passes opposition (21:28 UTC), it also makes its closest approach to the Earth in 2017. By midnight (local...

April 07, 2017

asteroid 2014 JO25 flyby april 19 2017

Large asteroid 2014 JO25 to flyby Earth at 4.6 LD on April 19

A large asteroid designated 2014 JO25 will safely flyby Earth at a distance of 4.6 LD (1.76 million km / 1.09 million miles) on April 19, 2017. This is the closest approach by any known asteroid of this size, or larger, since asteroid Toutatis in September 2004....

April 07, 2017

asteroid 2017 gm flyby april 4 2017

Asteroid 2017 GM to flyby Earth at a very close distance of 0.04 LD

A newly discovered asteroid designated 2017 GM will flyby Earth at a very close distance of 0.04 LD / 0.00011 AU (~16 455 km / 10 225 miles) from the center of Earth; 0.03 LD from the surface. This is the 17th known asteroid to flyby Earth within 1 lunar distance...

April 04, 2017

night sky guide 2017 april

Night sky guide for April 2017

April brings us three meteor showers - Virginids on April 12th, Lyrids on the 22nd and 23rd and Alpha Schorpiids on the 28th. The Moon will present minimal interference for Lyrids and Alpha Scorpiids. On April 1, Comet 41P/Tuttle-Giacobini-Kresák is making...

April 01, 2017

comet 41p tuttle giacobini kresak makes closest flyby since discovery

Comet 41P/Tuttle-Giacobini-Kresák makes closest flyby since discovery

Comet 41P/Tuttle-Giacobini-Kresák will make a close approach to our planet on April 1, 2017, passing at a safe distance of 0.142 AU / 55.4 LD. This will be its closest flyby of Earth since its discovery in 1858. 41P/Tuttle–Giacobini–Kresák...

March 30, 2017

asteroid 2017 FU102 flyby april 2 2017

Asteroid 2017 FU102 to flyby Earth at 0.55 LD

A newly discovered asteroid designated 2017 FU102 will flyby Earth at a distance of 0.55 LD (~211 200 km / 131 233 miles) from the surface of our planet on Sunday, April 2, 2017. The estimated size of 2017 FU102 is between 5.1 and 11 m (16 - 36 feet). It will flyby...

March 30, 2017

asteroid 2017 FJ101 flyby march 30 2017

Asteroid 2017 FJ101 to flyby Earth at 0.83 LD

A newly discovered asteroid designated 2017 FJ101 will flyby Earth at a distance of 0.83 LD (~318 720 km / 198 034 miles) from the surface of our planet on Thursday, March 30, 2017. This is the 15th asteroid to flyby Earth within 1 lunar distance since January 9,...

March 29, 2017

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 14th asteroid to flyby within 1 lunar distance since the start of the year (according...

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 13th 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