ADVERTISEMENT
  About the SA Blog Network

Posts Tagged "space telescope"

Life, Unbounded

The Photons Of Your Life

Starry Night Over The Rhone (V. van Gogh, public domain)

An unusual question raises an intriguing idea. At a party a few nights ago a friend approached me with a dilemma. A relative of theirs had died, and the spouse was trying to understand if it was at all possible that there was still ‘something’ of their partner in existence; a tangible part of their [...]

Keep reading »
Life, Unbounded

A Galactic Flyby Can Be Deadly, But Beautiful

326 million light years away a galactic encounter destroys a galaxy but creates something lovely (NASA, ESA, Hubble Heritage team, STScI/AURA, Wide Field Camera 3, visible light + near infrared image

Galaxies across the observable universe are engaged in ultra-slow motion interactions with each other, close encounters, flybys, and sometimes collisions. The outcome may be different in every case. Sometimes the presence of a neighboring galaxy’s gravitational pull as it passes by can disturb, or harass, the processes of star and planet formation. In other cases [...]

Keep reading »
Observations

Planet Hunters Bet Big on a Small Telescope to See Alien Earths

A view of Alpha Centauri hanging over the horizon of Saturn

In 1990, NASA’s Voyager 1 spacecraft briefly looked back from its journey out of the solar system, capturing a view of the faraway Earth. Carl Sagan called it the “pale blue dot.” From more than 6 billion kilometers away, beyond the orbit of Pluto, it seemed remarkable that our planet was even visible. But the [...]

Keep reading »
Observations

Earth-Like Planets Fill the Galaxy

Kepler telescope

LONG BEACH, Calif.—Look up on a starry night. Almost every one of those tiny pricks of light is home to an unseen world. Our Milky Way galaxy is full of planets—100 billion or more—and many of those planets are Earth-like rocks (although our solar system still appears to be an oddball). Such are the major [...]

Keep reading »

More from Scientific American

Scientific American Holiday Sale

Scientific American Mind Digital

Get 6 bi-monthly digital issues
+ 1yr of archive access for just $9.99

Hurry this offer ends soon! >

X

Email this Article

X