Click on Photos in the sidebar, under the Library section. Pick out the photos you want to add to an album, either new or existing. Hold down the command key on your Mac and click to select multiple photos. Right-click on your chosen photos and videos. Move the cursor to Add to. Photos libraries are usually located in the Pictures folder of your Home folder. The pathname should be /Pictures/Photos Libraries. The various image libraries you’ve created will be within the Photos Libraries folder. You should see items such as Photos Library and iCloud Photo Library, plus any additional libraries you’ve created. What should happen is that you wind up with a merged set of all photos across the three libraries. No media should be deleted. And Photos should be smart enough to not upload identical images. I have 250gb in the Photos library and 18,000 images (500gb free space). When I work on any images using the Edit tools the Photos application becomes progressively slower the more images I edit. If I use the Photos app to directly edit a file from within Affinity Photo it will only manage to edit approx. Six files before coming to a standstill. Of course, sometimes images are for both, and iPhoto Library Manager has a solution for this problem as well. From Fat Cat Software’s website, iPhoto Library Manager’s key features are: Multiple libraries: Create multiple iPhoto libraries, instead of having to keep all your photos in a single library.

The National Aeronautics and Space Administration (NASA) in 2017 opened the digital doors to its image and video library website, allowing the public to access more than 140,000 images, videos, and audio files. The collection provides unprecedented views of space. Stacker reviewed the collection to select 30 of the most breathtaking images, curated here with further information about the captured scenes.

NASA officially began operations on Oct. 1, 1958, as the primary organization for U.S. civil aerospace research and development. In just 11 years, NASA in 1969 landed the first human on the moon. In the 1970s, the focus shifted to developing a space station. Skylab was launched, unmanned, in May 1973. Three crewed missions followed during the next seven months to repair the station and conduct experiments. The first international space station partnership was the Apollo-Soyuz Test Project in 1975, which brought American and Soviet crews together.

The space shuttle program became fully realized in April 1981 with the manned launch of the Columbia. In 135 missions flown with five shuttles, there were two catastrophic accidents—Challenger and Columbia. Discovery delivered the Hubble Space Telescope into orbit. The 30-year shuttle program was significant in setting the foundation for future Earth-to-orbit transportation and sustained space stays.

Shuttle technology led to the construction of the International Space Station, the largest structure humans have put into space. Two hundred thirty people from 18 countries have lived there since 2000, conducting experiments and documenting life in space.

Achievements like these make up the substance of the NASA Image and Video Library, featuring the best of the agency’s work in aeronautics, astrophysics, Earth science, human spaceflight, and more. Keep reading to see 30 of these stunning images.

You may also like:Space discoveries that will blow your mind

Photos makes it easy to create and switch between libraries. That’s good when photos need to be kept completely separate. For instance, a real estate agent might want to keep personal photos separate from house photos taken for work. But too much separation is annoying—you have to keep switching between libraries, and it’s easy to import new photos into the wrong one.

If you struggle with multiple Photos libraries, never fear—you can merge them. Unfortunately, the process is slow, can require a lot of disk space, and may result in the loss of some metadata. You have three options: merging through iCloud Photos, using the PowerPhotos utility, and merging by exporting and importing. Each has pros and cons.

Merge through iCloud Photos

Apple’s iCloud Photos service offers the best solution for merging libraries. The trick is that whenever you designate a library as your System Photo Library, Photos automatically uploads all images that aren’t already present, adding them to the photos already in iCloud Photos. It also retains all the metadata surrounding your photos—titles, keywords, albums, facial recognition, projects, and more.

Split Photos Library Into Multiple Libraries

On the downside, using iCloud Photos almost certainly won’t be free unless you have so few photos that the combined library will fit within the free 5 GB of iCloud space Apple gives everyone. Almost everyone will have to pay for additional storage space ($0.99 per month for 50 GB, $2.99 for 200 GB, or $9.99 for 2 TB) for at least the month in which you’re doing the merge. iCloud Photos is a good service, so it’s likely worth paying for anyway.

More problematic is that the iCloud Photos way of merging will be very slow. If you haven’t already started using it, it could take a week or more to upload many thousands of photos. Plus, it will probably download the entire cloud-based collection of photos to each library whose photos you want to merge, so you may need a lot of local disk space too.

If you haven’t previously used iCloud Photos, go to System Preferences > iCloud and click the Options button next to Photo. In the dialog, select iCloud Photos.

Now, starting with the smallest Photos library and working up in size, follow these steps for each library you want to merge:

1. Double-click the Photos library to open it.
2. In Photos > Preferences > General, click Use as System Photo Library. (If it’s dimmed out, that library is already set as the System Photo Library.)
   
3. Wait for photos to upload. Scroll to the bottom of the Photos view to see the progress. A Pause link will appear there during uploading—click it if you need to keep Photos from overwhelming your Internet connection. Once the photos have all uploaded, go back to Step 1 with your next Photos library.

When you’re done, the last Photos library becomes the one you’ll keep, and you can delete the others. Needless to say, make sure you have good backups first!

Merge with PowerPhotos

Multiple Photos Libraries In A Room

The $30 PowerPhotos from Fat Cat Software provides a variety of extra capabilities when working with Photos. It helps you to create and manage multiple libraries, copy photos between libraries, find duplicates, and—most important for this topic—merge libraries.

Using Multiple Libraries In Photos

Because PowerPhotos is working entirely on your Mac’s drive, it’s fast and it doesn’t require huge amounts of extra disk space. Unfortunately, unlike the iCloud Photos approach, which brings in both originals and any edits to those photos, PowerPhotos can import only your original photos or the versions that you’ve edited, not both. Plus, it can’t merge facial recognition data, smart albums, or print projects.

PowerPhotos provides an actual interface for merging too—choose Library > Merge Libraries to start.

In the window that appears, you have four tasks:

1. Choose source libraries. You aren’t limited to merging just two libraries; you can pick multiple sources.
2. Choose the destination library. This is the library you want to receive all the photos. If you want, you can create a new one.
3. Configure duplicate handling. PowerPhotos can import just one of several copies of duplicate photos, or you can bring in all the duplicates if that’s important.
4. Choose options. PowerPhotos can merge album contents, create an album from each source library, and create a backup before merging. Most important, though, is the choice of whether to merge your original photos or the edited versions.

Merge by Exporting and Importing

This final option is conceptually simple. You export all the photos from one library and then import them into another. It’s even what Apple recommends. The main thing it has going for it is that it’s free, and it will be faster than the iCloud Photos approach. It could also be useful if you want to copy a subset of photos between libraries, rather than merging all photos.

Multiple Photos Libraries In Home

However, as with PowerPhotos, you have to choose between original and edited photos, and you’ll need a lot of extra disk space. Even worse, you’ll lose even more metadata, including albums, faces, and print projects. And if you export as JPEG, your photos may also suffer a slight quality drop as they’re recompressed.

For those who want to use this approach, Apple provides detailed instructions. In essence, you’ll click Photos in the sidebar to see everything, and then choose Edit > Select All. Then you’ll choose File > Export and either Export X Photos (to get the edited versions of images) or Export Unmodified Original for X Photos (to get the original images). Once everything has exported, you’ll switch libraries in Photos and then drag the folder of exported images back into Photos to import it.

Our nod goes to the iCloud Photos technique, but PowerPhotos is a fine utility for those who aren’t perturbed by its limitations. Of course, don’t start any merging without making backups first, and if you need help, don’t hesitate to call or text us!

Multiple Photos Libraries In A Book

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