Unseen black hole siblings? | | Our Milky Way galaxy is known to have a supermassive black hole at its heart. Could more supermassive black holes be lurking unseen at our galaxy's outskirts? | | |
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Traveling by air? Watch for a glory | | People traveling in airplanes often see glories. The sun has to be behind your head. You'll see the plane's shadow cast on a cloud, surrounded by a halo of light. | | |
Watch asteroids orbiting our sun | | Both NASA and ESA space missions have just released new videos plotting the orbits of tens of thousands of asteroids (and comets) orbiting our sun. | | |