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アメリカ宇宙航空局(NASA)が公開したこのイメージ。ぽっかりドーナツ状に弧を描いた宇宙空間の穴の中に流星が突入、こんな印象を受けるかもしれない。だが実際は「巨大なブラックホールが星を飲み込む瞬間」らしい。言ってしまえばブラックホールも天体のひとつなわけだが、あまりに高密度で重力が強いため物質だけでなく、光すらも脱出できない。それゆえ、近くを通る星は一瞬にして吸い込まれ、跡形もなく消えてしま...

ブラックホールが「星を飲み込む瞬間」をNASAがついに捉えた!

アメリカ宇宙航空局(NASA)が公開したこのイメージ。ぽっかりドーナツ状に弧を描いた宇宙空間の穴の中に流星が突入、こんな印象を受けるかもしれない。だが実際は「巨大なブラックホールが星を飲み込む瞬間」らしい。言ってしまえばブラックホールも天体のひとつなわけだが、あまりに高密度で重力が強いため物質だけでなく、光すらも脱出できない。それゆえ、近くを通る星は一瞬にして吸い込まれ、跡形もなく消えてしま...

Ten Equations that changed the world. Show students that MATH MATTERS!!

Ten Equations that changed the world. Show students that MATH MATTERS!!

Hues in a Crater Slope: Impact craters expose the subsurface materials on the steep slopes of Mars. However these slopes often experience rockfalls and debris avalanches that keep the surface clean of dust revealing a variety of hues like in this enhanced-color image from NASA's Mars Reconnaissance Orbiter representing different rock types.

Hues in a Crater Slope

Hues in a Crater Slope: Impact craters expose the subsurface materials on the steep slopes of Mars. However these slopes often experience rockfalls and debris avalanches that keep the surface clean of dust revealing a variety of hues like in this enhanced-color image from NASA's Mars Reconnaissance Orbiter representing different rock types.

The wavemaker moon, Daphnis, is featured in this view, taken as NASA's Cassini spacecraft made one of its ring-grazing passes over the outer edges of Saturn's rings on Jan. 16, 2017. This is the closest view of the small moon obtained yet.

Daphnis Up Close

The wavemaker moon, Daphnis, is featured in this view, taken as NASA's Cassini spacecraft made one of its ring-grazing passes over the outer edges of Saturn's rings on Jan. 16, 2017. This is the closest view of the small moon obtained yet.

Expedition 49 Soyuz Spacecraft Landing Follow @GalaxyCase if you love Image of the day by NASA #imageoftheday

Expedition 49 Soyuz Spacecraft Landing

Expedition 49 Soyuz Spacecraft Landing Follow @GalaxyCase if you love Image of the day by NASA #imageoftheday

NASA.gov brings you the latest images, videos and news from America's space agency. Get the latest updates on NASA missions, watch NASA TV live, and learn about our quest to reveal the unknown and benefit all humankind.

Image of the Day Gallery

NASA.gov brings you the latest images, videos and news from America's space agency. Get the latest updates on NASA missions, watch NASA TV live, and learn about our quest to reveal the unknown and benefit all humankind.

Full-Circle Vista With a Linear Shaped Martian Sand Dune:   Long rows of ripples on a linear shaped dune in the Bagnold Dune Field

Full-Circle Vista With a Linear Shaped Martian Sand Dune

Full-Circle Vista With a Linear Shaped Martian Sand Dune: Long rows of ripples on a linear shaped dune in the Bagnold Dune Field

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