The Jupiter will kill any mission NASA’s search for life, scientists warn

11 Octubre, 2018, 02:27 | Author: Enrique Watson
  • Jupiter moon mission may be hampered by giant ice shards, scientists warn

Any robotic spacecraft landing on the moon will have to navigate its way around the obstacles, a new study suggests. Jupiter's moon Europa is one of the most tantalizing. When ice is exposed to the elements for long periods of time - specifically when it's bathed in sunlight but ambient temperature remains well below freezing - it tends to form valleys and peaks which become more pointed and "sharp" over time.

Jupiter's moon Europa has always been a major target for exploration because it harbors a salty water ocean beneath its icy crust.

Colour view of Europa from Galileo that shows the largest portion of the moon's surface at the highest resolution.

Penitentes are composed of snow and ice, and they arise through sublimation - a chemical process in which ice turns directly into water vapour without melting into a liquid beforehand.

More news: La verdadera razón por la que Zidane se fue del Real Madrid
More news: Microsoft data centres to power new Xbox streaming service
More news: Ed Sheeran soprende a Bruno Mars cantándole en su cumpleaños

Known as penitentes, these sublimation-sculpted blades grow to between 3 to 16 feet (1-5 m) tall, but they are restricted to high-altitude tropical and subtropical conditions, such as in the Andes. Actually traveling to Europa is still little more than a dream, but when we eventually make it happen we may need to grapple with something unexpected: a surface covered in brutal blades of ice. It should also give scientists a much better idea of what the surface looks like, and if it sees a bed of icy spikes, NASA will have to figure out how to deal with them for future missions. This bolsters the idea that there's something waiting on Europa's surface to tear incoming spacecraft to shreds.

In their study, the researchers used observational data to calculate the sublimation rates at various points on Europa's surface and thus used these to estimate the size and distribution of penitentes.

Further observations are needed to definitively prove that Europa's surface is covered in the penitentes, but that could come soon. It is believed a landing mission could follow soon after. Dr Moore is a co-investigator on Europa Clipper.

The technical requirements of such a mission boggle the mind, and now, with the news that Europa's surface may contain vast fields of penitentes, there's an added complication.



"Me equivoqué con Mascherano, pensé que era caudillo" — Maradona
Yo también soy culpable , atención. Él me vino a pedir apoyo a La Candela y le dije que sí. Me dijo un montón de cosas y no hizo nada, no me llamó más.

Lady Gaga Pens Emotional Op-Ed About Mental Health Stigma
The new Mental Health Strategy launched on Wednesday - World Mental Health Day . This year, it's young people and mental health in a changing world.

British tourists among Majorca flood victims
More than 8 inches of rainfall fell in just a few hours on Tuesday morning, according to the Spanish weather company Aemet. People walk along the damaged waterfront after a storm on the island of Mallorca , Spain, on October 10, 2018.

La periodista Mercedes Ninci lloró muy angustiada: "No nos alcanza la plata"
Con lágrimas en los ojos, continuó: "Somos el quinto país con la mayor inflación del mundo". Sin embargo, agregó: " Lo que está haciendo ahora como ministro me parece terrible ".

España: nueve muertos por las lluvias en Mallorca
Tanto, que se ha acercado al municipio más afectado, Sant Llorenç des Cardassar , para prestar su ayuda a los damnificados. Las autoridades locales han declarado la alerta roja y han aconsejado a los habitantes no salir de sus casas.

Kate Middleton Exudes Sophistication at Museum Exhibit Opening
The Duchess of Cambridge was stunning in a lilac Emilia Wickstead dress and blush-colored heels. The initiative was started by Dixon Chibanda and teaches the women to become lay health workers.

American Music Awards: See Photos From the Red Carpet
The American Music Awards isn't the only award X has received recently either. XXXTentacion was also nominated for the New Artist of the Year award.

Turkish paper publishes photos of Saudi journalist's 'assassination squad'
Turkish officials have alleged he was killed in the compound while Saudis officials said he left the building unharmed. Turkey has said it will conduct a search, but has also asked for definitive proof that Mr Khashoggi left the building.

Inician en Brasil los comicios mas polarizados de las ultimas decadas
La jornada electoral, que ha durado nueve horas transcurrió con normalidad y sólo tuvo algunos incidentes aislados. Además del proselitismo al lado de la urna, el principal crimen reprimido fue la propaganda electoral irregular.

Huelguistas rodean el Congreso en Costa Rica durante debate de reforma fiscal
También incluye cambios en el impuesto sobre la renta, en la renta de capital, la renta global y medidas para reducir el gasto público, como por ejemplo la disminución de pluses salariales.