Have you a sex problem? Please visit our site:fesmag.com/medic
WASHINGTON (AP) -- Our galaxy is looking far more crowded and hospitable. NASA on Wednesday confirmed a bonanza of 715 newly discovered planets outside our solar system.
Scientists using the planet-hunting Kepler telescope pushed the number of planets discovered in the galaxy to about 1,700. Twenty years ago, astronomers had not found any planets circling stars other than the ones revolving around our sun.
"We almost doubled just today the number of planets known to humanity," NASA planetary scientist Jack Lissauer said in a Wednesday teleconference, calling it "the big mother lode."
Astronomers used a new confirmation technique to come up with the largest single announcement of a batch of exoplanets - what planets outside our solar system are called.
While Wednesday's announcements were about big numbers, they also were about implications for life behind those big numbers.
All the new planets are in systems like ours where multiple planets circle a star. The 715 planets came from looking at just 305 stars. They were nearly all in size closer to Earth than gigantic Jupiter.
And four of those new exoplanets orbit their stars in "habitable zones" where it is not too hot or not too cold for liquid water which is crucial for life to exist.
Douglas Hudgins, NASA's exoplanet exploration program scientist, called Wednesday's announcement a major step toward Kepler's ultimate goal: "finding Earth 2.0."
It's a big step in not just finding other Earths, but "the possibility of life elsewhere," said Lisa Kaltenegger, a Harvard and Max Planck Institute astronomer who wasn't part of the discovery team.
The four new habitable zone planets are all at least twice as big as Earth so that makes them more likely to be gas planets instead of rocky ones like Earth - and less likely to harbor life.
So far Kepler has found nine exoplanets in the habitable zone, NASA said. Astronomers expect to find more when they look at all four years of data collected by the now-crippled Kepler; so far they have looked at two years.
Planets in the habitable zone are likely to be farther out from their stars because it is hot close in. And planets farther out take more time orbiting, so Kepler has to wait longer to see it again.
Another of Kepler's latest discoveries indicates that "small planets are extremely common in our galaxy," said MIT astronomer Sara Seagar, who wasn't part of the discovery team. "Nature wants to make small planets."
And, in general, smaller planets are more likely to be able to harbor life than big ones, Kaltenegger said.
AUSTIN, Texas (AP) - A federal judge has struck down Texas' ban on gay marriage, but is leaving it in place pending a ruling by an appeals court later this year.
Judge Orlando Garcia issued a preliminary injunction on the ban Wednesday, then suspended his ruling. Two gay couples had challenged the state's constitutional amendment and a longstanding law banning gay marriage.
Under federal court rules, a judge may suspend a law if he or she believes the plaintiffs have a strong case and will suffer if the law is enforced.
Garcia said his injunction against Texas enforcing its ban will take effect once an appeals court has a chance to rule on the issue.
The ruling is the latest in a recent series of victories for gay rights activists.