Sentences with phrase «like stars»

(Some quasars may be billions — or even a trillion — times brighter than the sun, yet they are so far away they still look like stars.)

They belong to a class of cells called the glia, and they're called astrocytes because they're shaped like stars (sort of).

Young, mostly sun - like stars in the core, or central bulge, provided the building blocks for the galaxy's foundation.

Currently, only Hubble has sharp enough resolution to simultaneously measure the motions of thousands of Sun - like stars at the bulge's distance from Earth.

Abstract: Since the discovery of the first extrasolar giant planets around Sun - like stars, evolving observational capabilities have brought us closer to the detection of true Earth analogues.

A new study carried out by an international team of researchers has shed light on how long Sun - like stars and their less massive cousins remain in this youthful phase before their magnetic activity subsides.

So I predict that in 10 years we will have detected oxygen in Earth - size planets around Sun - like stars.

This work represents significant progress in accurately determining the fraction of Earth - size planets in the habitable zone of Sun - like stars.

Since Earth is the only planet known to play host to life, Sun - like stars and their exoplanets are considered promising targets in the search for E.T.. However, simply discovering a rocky Earth - sized world orbiting a Sun - like star does not guarantee the existence of life.

The smallest exoplanet hitherto discovered has... ▽ More Since the discovery of the first extrasolar giant planets around Sun - like stars, evolving observational capabilities have brought us closer to the detection of true Earth analogues.

Juvenile clownfish grow up to be bright orange with whitish stripes, like the stars of Finding Nemo.

During their early life, Sun - like stars spin very fast, creating extremely high levels of magnetic activity that drive powerful stellar flares, coronal mass ejections, and an outpouring of X-ray and ultraviolet radiation.

«Our observations show that we can detect the transits of small planets around Sun - like stars using ground - based telescopes,» Ernst de Mooij of Queen's University Belfast in the United Kingdom and the study's lead author, said in a statement.

After that, we will most likely be able to expand our search to Earth - like planets orbiting Sun - like stars with the very next generation of space telescopes.

At the same time, an estimated 20 % of sun - like stars have earth - sized planets in the habitable zone, suggesting there may be plenty of solar - system analogues.

Planets about one to four times the size of Earth appear to be typical around Sun - like stars.

The researchers determined that 22 percent of sun - like stars have Earth - like planets orbiting in the habitable zone.

While these objects can not fuse «regular» hydrogen (a single proton nucleus) like stars, they have enough mass to briefly fuse deuterium (hydrogen with a proton - neutron nucleus).

Recent statistics indicate that over a fourth of Sun - like stars and roughly a half of red dwarfs in our Milky Way Galaxy have been found in multi-star systems — around 44 percent of of spectral types F6 to K3 and possibly declining to one third to one fourth of very dim type M stars that are difficult to observe (Raghavan et al, 2010; Charles J. Lada, 2006; and Duquennoy and Mayor, 1991).

Research with the NASA - funded Keck Interferometer, a former NASA key science project that combined the power of the twin telescopes of the W. M. Keck Observatory atop Mauna Kea, Hawaii, shows that mature, sun - like stars appear to be, on average, not all that dusty.

This estimate takes into account the fact that the ultraviolet irradiance of the Sun was considerably larger in the distant past, as confirmed by astronomical measurements of younger Sun - like stars in the nearby galaxy.

Discoveries of Sun - like stars with host exoplanets as well as red dwarf companions have been common, and many appear to be old and stable enough for life to have evolved (RAS new releases of April 16 and April 19, 2011; and University of St. Andrews press release).

Analysis of four years of precision measurements from Kepler shows that 22 ± 8 % of Sun - like stars have Earth - sized planets in the habitable zone.

«Until now, no one knew exactly how common potentially habitable planets were around Sun - like stars in the galaxy.»

Nonetheless, more than half of the observed Sun - like stars in the solar neighbourhood have one or more super — Earth planets that orbit their host star within days to months - a feature that is lacking in our own Solar System.

Waimea, Hawaii — Scientists from University of California, Berkeley, and University of Hawaii, Manoa, have statistically determined that twenty percent of Sun - like stars in our galaxy have... Read more»

Waimea, Hawaii — Scientists from University of California, Berkeley, and University of Hawaii, Manoa, have statistically determined that twenty percent of Sun - like stars in our galaxy have Earth - sized planets that could host life.

Many Sun - like stars exhibit cyclical magnetic activity.

A paper showing what protoplanetary disks masses were needed to form the Kepler planets around sun - like stars just appeared online.

The authors find that 22 ± 8 % of Sun - like stars harbor a planet between one and two times the size of Earth in the habitable zone.

The best estimates for the occurrence rates of habitable zone earth - sized planets around sun - like stars is about 50 %, and for lower - mass stars this value is likely to be even higher: most red dwarf stars are expected to have one or more habitable zone, approximately earth - sized planets.

Kepler (Figure 3) observed over 100.000, mainly sun - like stars, but also a few thousand red dwarfs.

In their simulations, two sun - like stars orbit one another at between 250 and 1000 times the Earth - sun distance in our solar system, with one or both stars having its own set of planets.

Was it a massive star, like the Crab's progenitor, or a tiny white dwarf, like the stars of 1006, 1572 and 1604?

Since we commanded the Hubble Space Telescope to track Pluto during the imaging, objects not moving with Pluto (like stars and asteroids) appear as streaks in the images, rather than a point - like source moving with Pluto.

Alpha Centauri, the nearest neighboring star system to our Sun, harbors two sun - like stars, Alpha Centauri A and B.

Very low - mass stars are extremely common (much more so that Sun - like stars), and are known to host lots of small planets.

Brown dwarfs start their lives like stars, as collapsing balls of gas, but they lack the mass to burn nuclear fuel and radiate starlight.

They represent the smallest and lightest objects that can form like stars do in the Galaxy so they are an important «book end» in Astronomy.

Furthermore, it is suitable for shapes commonly used for crafts, like stars, clouds, or hearts.

But earlier studies of astroviruses — so called because they look like stars under an electron microscope — had suggested that they were choosier about their hosts.

Shmulik Balberg of the Hebrew University of Jerusalem, Israel, and colleagues say there should be another kind caused by sun - like stars caught in head - on collisions.

The team found that, like the stars, the dark matter continued straight through the violent collisions without slowing down.

You have been studying exoplanets — planets outside the solar system that orbit Sun - like stars — almost since they were first discovered.

Astrophysicists at the University of Minnesota conducted a supercomputer simulation of sun - like stars to model this turbulence, which violently but effectively circulates heat in the region just below the stellar surface.

Although hundreds of exoplanets had already been found orbiting sun - like stars throughout the Milky Way, they had been discovered by indirect means — astronomers had inferred the presence of a planet by observing the dimming effects or gravitational wobble an orbiting companion induces on its parent star.

Studies of other stars, as well as theoretical modeling, have shown that Sun - like stars begin their life about 20 to 30 percent fainter in visible wavelengths than the Sun is at present.

And they do pose some problems: red dwarfs tend to be more active than sun - like stars, shooting out energetic flares that could fry nearby planets.

They also live billions of years longer than sun - like stars, on average.

The targets are either large, like the sun, or plentiful, like the stars, thereby making it much easier to target an object and then maintain a lock onto that object, Hurford said.