Science, Space and Technology News 2023
We and our partners use cookies to Store and/or access information on a device. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. An example of data being processed may be a unique identifier stored in a cookie. Some of our partners may process your data as a part of their legitimate business interest without asking for consent.
However, the expanded planetary body produced by the impact will take a long time, perhaps millions of years, to cool and shrink to something we might recognize as a new planet. Initially, when this “post-impact body” was at its greatest extent, the light emitted from it could still be as high as several percent of emission from the star. Such a body could have produced the infrared brightening that we saw.
Firstly, to emit the amount of energy observed, the post-impact body must have been many hundreds of times the size of Earth. To create a body that large, the planets that collided must each have been several times the mass of Earth – possibly as large as theSecondly, we estimate the temperature of the post-impact body to be around 700°C. For the temperature to be that low, the colliding bodies could not have been entirely made of rock and metal.
Norge Siste Nytt, Norge Overskrifter
Similar News:Du kan også lese nyheter som ligner på denne som vi har samlet inn fra andre nyhetskilder.
SpaceX, Blue Origin, Virgin Galactic executives urge senators to improve the FAAExecutives from top U.S. space companies called for improvements to the FAA's regulatory and licensing process during a Senate hearing on Wednesday.
Les mer »
SpaceX, Blue Origin, Virgin Galactic executives urge senators to improve the FAAExecutives from top U.S. space companies called for improvements to the FAA’s regulatory and licensing process during a Senate hearing on Wednesday.
Les mer »
SpaceX, Blue Origin, Virgin Galactic executives urge senators to improve the FAAExecutives from top U.S. space companies called for improvements to the FAA’s regulatory and licensing process during a Senate hearing on Wednesday.
Les mer »